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Public choice

Public choice, or public choice theory, is "the use of economic tools to deal with traditional problems of political science." Its content includes the study of political behavior. In political science, it is the subset of positive political theory that studies self-interested agents (voters, politicians, bureaucrats) and their interactions, which can be represented in a number of ways—using (for example) standard constrained utility maximization, game theory, or decision theory. It is the origin and intellectual foundation of contemporary work in political economy.

In popular use, "public choice" is often used as a shorthand for components of modern public choice theory that focus on how elected officials, bureaucrats, and other government agents can be influenced by their own perceived self-interest when making decisions in their official roles. Economist James M. Buchanan received the 1986 Nobel Memorial Prize in Economic Sciences "for his development of the contractual and constitutional bases for the theory of economic and political decision-making" in this space.

Public choice analysis has roots in positive analysis ("what is") but is sometimes used for normative purposes ("what ought to be") in order to identify a problem or to suggest improvements to constitutional rules (as in constitutional economics). However, the normative economics of social decision-making is typically placed under the closely-related field of social choice theory, which takes a mathematical approach to the aggregation of individual interests, welfares, or votes. Much early work had aspects of both, and both fields use the tools of economics and game theory. Since voter behavior influences the behavior of public officials, public-choice theory often uses results from social-choice theory. General treatments of public choice may also be classified under public economics.

Building upon economic theory, public choice has some core tenets that are predominantly adhered to. Due to this there is no decision made by an aggregate whole. Rather, decisions are made by the combined choices of the individuals. The second is the use of markets in the political system, which was argued to be a return to true economics. The final is the self-interested nature of all individuals within the political system. However, as Buchanan and Tullock argued, "the ultimate defense of the economic-individualist behavioral assumption must be empirical[...] The only final test of a model lies in its ability to assist in understanding real phenomena."

History of social choice and public choice theory
An early precursor of modern public choice theory was the work of Swedish economist Knut Wicksell (1896), which treated government as political exchange, a quid pro quo, in formulating a benefit principle linking taxes and expenditures. American statesman and political theorist John C. Calhoun is also seen as a precursor to modern public choice theory. His writings on political economy anticipate the "public choice revolution" in modern economics and political science.

Some subsequent economic analysis has been described as treating government as though it attempted "to maximize some kind sort of welfare function for society" and as distinct from characterizations of self-interested economic agents, such as those in business. This is a clear dichotomy, as one can be self-interested in one area, while being altruistic in another. In contrast, public choice theory modeled government as made up of officials who, besides pursuing the public interest, might act to benefit themselves, for example in the budget-maximizing model of bureaucracy, possibly at the cost of efficiency.

Modern public choice theory
Modern public choice theory uses the basic assumptions, principles and methods of microeconomics as an analytical tool to study and portray the behavior of subjects in political markets and the operation of political markets. Public choice refers to the behavior and process of what public goods are provided, how they are provided and distributed, and the corresponding matching rules are established. Public choice theory expects to study and influence people's public choice processes to maximize their social utility.

Modern public-choice theory, and especially election theory, has been dated from the work of Duncan Black, sometimes called "the founding father of public choice". In a series of papers from 1948, which culminated in The Theory of Committees and Elections (1958), and later, Black outlined a program of unification toward a more general "Theory of Economic and Political Choices" based on common formal methods, developed underlying concepts of what would become median voter theory, and rediscovered earlier works on voting theory. Black's work also included the possibility of entirely random outcomes in a voting structure, where the only governance over the outcome is the where a particular motion falls in the sequence presented.

Kenneth J. Arrow's Social Choice and Individual Values (1951) influenced formulation of the theory of public choice and election theory. Building on Black's theory, Arrow concluded that in a non-dictatorial setting, there was no predictable outcome or preference order that can be discerned for a set of possible distributions. Among other important works are Anthony Downs (1957) An Economic Theory of Democracy and Mancur Olson (1965) The Logic of Collective Action. The Logic of Collective Action was fundamental in beginning the study of special interests. In it, Olson began to open questions about the nature of groups, including their lack of incentive to act with a lack of organization and free-rider problems of these larger groups upon specialized group's actions. Due to the incentive for concentrated groups (such as farmers) to act for their own interest, paired with a lack of organization of large groups (such as the public as a whole), legislation implemented as a result benefits a small group rather than the public at large.

James M. Buchanan and Gordon Tullock coauthored The Calculus of Consent: Logical Foundations of Constitutional Democracy (1962), considered one of the landmarks in public choice and constitutional economics. In particular, the preface describes the book as "about the political organization" of a free society. But its methodology, conceptual apparatus, and analytics "are derived, essentially, from the discipline that has as its subject the economic organization of such a society" (1962, p. v). Buchanan and Tullock build out a framework within Calculus of constitutional decision making and structures. This framework differentiates decisions that are made into two categories: Constitutional decisions and political decisions. Constitutional decisions establish long standing rules that rarely change and govern the political structure itself. Political decisions are those that take place within and are governed by the structure. The book also focuses on positive-economic analysis as to the development of constitutional democracy but in an ethical context of consent. The consent takes the form of a compensation principle like Pareto efficiency for making a policy change and unanimity or at least no opposition as a point of departure for social choice.

Somewhat later, the probabilistic voting theory started to displace the median voter theory in showing how to find Nash equilibria in multidimensional space. The theory was later formalized further by Peter Coughlin.

Constitutional economics
Constitutional economics is a research program in economics and constitutionalism that has been described as extending beyond the definition of "the economic analysis of constitutional law" in explaining the choice "of alternative sets of legal-institutional-constitutional rules that constrain the choices and activities of economic and political agents." This is distinct from explaining the choices of economic and political agents within those rules, a subject of "orthodox" economics.

Constitutional economics studies the "compatibility of effective economic decisions with the existing constitutional framework and the limitations or the favorable conditions created by that framework," It has been characterized as a practical approach to apply of the tools of economics to constitutional matters. For example, a major concern of every nation is the proper allocation of available national economic and financial resources. The legal solution to this problem falls within the scope of constitutional economics.

Constitutional economics takes into account the significant impacts of political economic decisions as opposed to limiting analysis to economic relationships as functions of the dynamics of distribution of "marketable" goods and services. "The political economist who seeks to offer normative advice, must, of necessity, concentrate on the process or structure within which political decisions are observed to be made. Existing constitutions, or structures or rules, are the subject of critical scrutiny. "

Decision-making processes and the state
One way to organize the subject matter studied by public choice theorists is to begin with, the state's foundations. According to this procedure, the most fundamental subject is the origin of government. Although some work has been done on anarchy, autocracy, revolution, and even war, the bulk of the study in this area has concerned with the fundamental problem of collectively choosing constitutional rules. Much of this study on constitutional rules is based on work by James M. Buchanan. This work assumes a group of individuals who aim to form a government, then it focuses on the problem of hiring the agents required to carry out government functions agreed upon by the members.

Bureaucracy
Another major sub-field is the study of bureaucracy. The usual model depicts the top bureaucrats as being chosen by the chief executive and legislature, depending on whether the democratic system is presidential or parliamentary. The typical image of a bureau chief is a person on a fixed salary who is concerned with pleasing those who appointed him or her. The latter has the power to hire and fire him or her more or less at will. The bulk of the bureaucrats, however, are civil servants whose jobs and pay are protected by a civil service system against major changes by their appointed bureau chiefs. This image is often compared with that of a business owner whose profit varies with the success of production and sales, who aims to maximize profit, and who can in an ideal system hire and fire employees at will. William Niskanen is generally considered the founder of public choice literature on the bureaucracy.

The anthropological study of bureaucracy has mostly contributed to our understanding of how various institutions of governance actually operate, why they achieve the outcomes they do, and what their work cultures are. In this sense, the state and its various branches, including village councils and courts of law, have gotten special consideration. A focus has also been placed on non-state welfare and humanitarian organisations, ranging in size from tiny NGOs to significant supranational institutions like the United Nations.

"Expressive interests" and democratic irrationality
Geoffrey Brennan and Loren Lomasky claim that democratic policy is biased to favor "expressive interests" and neglect practical and utilitarian considerations. Brennan and Lomasky differentiate between instrumental interests (any kind of practical benefit, both monetary and non-monetary) and expressive interests (forms of expression like applause). According to Brennan and Lomasky, the paradox of voting can be resolved by differentiating between expressive and instrumental interests.

This argument has led some public choice scholars to claim that politics is plagued by irrationality. In articles published in the Econ Journal Watch, economist Bryan Caplan contended that voter choices and government economic decisions are inherently irrational. Caplan's ideas are more fully developed in his book The Myth of the Rational Voter (Princeton University Press 2007). Countering Donald Wittman's arguments in The Myth of Democratic Failure, Caplan claims that politics is biased in favor of irrational beliefs.

According to Caplan, democracy effectively subsidizes irrational beliefs. Anyone who derives utility from potentially irrational policies like protectionism can receive private benefits while imposing the costs of such beliefs on the general public. Were people to bear the full costs of their "irrational beliefs", they would lobby for them optimally, taking into account both their instrumental consequences and their expressive appeal. Instead, democracy oversupplies policies based on irrational beliefs. Caplan defines rationality mainly in terms of mainstream price theory, pointing out that mainstream economists tend to oppose protectionism and government regulation more than the general population, and that more educated people are closer to economists on this score, even after controlling for confounding factors such as income, wealth or political affiliation. One criticism is that many economists do not share Caplan's views on the nature of public choice. However, Caplan does have data to support his position. Economists have, in fact, often been frustrated by public opposition to economic reasoning. As Sam Peltzman puts it: "Economists know what steps would improve the efficiency of HSE [health, safety, and environmental] regulation, and they have not been bashful advocates of them. These steps include substituting markets in property rights, such as emission rights, for command and control ... The real problem lies deeper than any lack of reform proposals or failure to press them. It is our inability to understand their lack of political appeal."Public choice's application to government regulation was developed by George Stigler (1971) and Sam Peltzman (1976).

Special interests
Public choice theory is often used to explain how political decision-making results in outcomes that conflict with the preferences of the general public. For example, many advocacy group and pork barrel projects are not the desire of the overall democracy. However, it makes sense for politicians to support these projects. It may make them feel powerful and important. It can also benefit them financially by opening the door to future wealth as lobbyists. The project may be of interest to the politician's local constituency, increasing district votes or campaign contributions. The politician pays little or no cost to gain these benefits, as he is spending public money. Special-interest lobbyists are also behaving rationally. They can gain government favors worth millions or billions for relatively small investments. They face a risk of losing out to their competitors if they don't seek these favors. The taxpayer is also behaving rationally. The cost of defeating any one government give-away is very high, while the benefits to the individual taxpayer are very small. Each citizen pays only a few pennies or a few dollars for any given government favor, while the costs of ending that favor would be many times higher.

Everyone involved has rational incentives to do exactly what they are doing, even though the desire of the general constituency is opposite. Costs are diffused, while benefits are concentrated. The voices of vocal minorities with much to gain are heard over those of indifferent majorities with little to individually lose. However the notion that groups with concentrated interests will dominate politics is incomplete because it is only one half of political equilibrium. Something must incite those preyed upon to resist even the best organized concentrated interests. In his article on interest groups Gary Becker identified this countervailing force as being the deadweight loss from predation. His views capped what has come to be known as the Chicago school of political economy and it has come in sharp conflict with the so-called Virginia faction of public choice due to the former's assertion that politics will tend towards efficiency due to nonlinear deadweight losses and due to its claim that political efficiency renders policy advice irrelevant.

While good government tends to be a pure public good for the mass of voters, there may be many advocacy groups that have strong incentives for lobbying the government to implement specific policies that would benefit them, potentially at the expense of the general public. For example, lobbying by the sugar manufacturers might result in an inefficient subsidy for the production of sugar, either directly or by protectionist measures. The costs of such inefficient policies are dispersed over all citizens, and therefore unnoticeable to each individual. On the other hand, the benefits are shared by a small special-interest group with a strong incentive to perpetuate the policy by further lobbying. Due to rational ignorance, the vast majority of voters will be unaware of the effort; in fact, although voters may be aware of special-interest lobbying efforts, this may merely select for policies which are even harder to evaluate by the general public, rather than improving their overall efficiency. Even if the public were able to evaluate policy proposals effectively, they would find it infeasible to engage in collective action in order to defend their diffuse interest. Therefore, theorists expect that numerous special interests will be able to successfully lobby for various inefficient policies. In public choice theory, such scenarios of inefficient government policies are referred to as government failure – a term akin to market failure from earlier theoretical welfare economics.

Rent-seeking
A field closely related to public choice is the study of rent-seeking. This field combines the study of a market economy with that of government. Thus, one might regard it as a new political economy. Its basic thesis is that when both a market economy and government are present, government agents may rent or sell their influence (i.e., a vote) to those who are seeking input into the lawmaking process. The government agent stands to benefit from support from the party seeking influence, while the party seeks to gain benefit by implementing public policy that benefits them. This essentially results in the capture and reallocation of benefits, wasting the benefit and any resources used from being put to a productive use in society. This is since that the party attempting to acquire the benefit will spend up to or more than the benefit accrued, resulting in a zero-sum gain, or a negative sum gain. The real gain is the gain over the competition. This political action will then be used to keep competition out of the market due to a lack of real or political capital.

Rent-seeking is broader than public choice in that it applies to autocracies as well as democracies and, therefore, is not directly concerned with collective decision making. However, the obvious pressures it exerts on legislators, executives, bureaucrats, and even judges are factors that public choice theory must account for when analysis of collective decision-making rules and institutions. Moreover, the members of a collective who are planning a government would be wise to take prospective rent-seeking into account.

Another major claim is that much of political activity is a form of rent-seeking that wastes resources. Gordon Tullock, Jagdish Bhagwati, and Anne Osborn Krueger have argued that rent-seeking has caused considerable waste.

Political stance
From such results it is sometimes asserted that public choice theory has an anti-state tilt. But there is ideological diversity among public choice theorists. Mancur Olson for example was an advocate of a strong state and instead opposed political interest group lobbying. More generally, James Buchanan has suggested that public choice theory be interpreted as "politics without romance," a critical approach to a pervasive earlier notion of idealized politics set against market failure.

The British journalist, Alistair Cooke, commenting on the Nobel Memorial Prize awarded to James M. Buchanan in 1986, reportedly summarized the public choice view of politicians by saying, "Public choice embodies the homely but important truth that politicians are, after all, no less selfish than the rest of us."

Recognition
Several notable public choice scholars have been awarded the Nobel Prize in Economics, including Kenneth Arrow (1972), James M. Buchanan (1986), George Stigler (1982), Gary Becker (1992), Amartya Sen (1998), Vernon Smith (2002) and Elinor Ostrom (2009). In addition, James Buchanan, Vernon Smith, and Elinor Ostrom were former presidents of the Public Choice Society.

Limitations and critiques
Buchanan and Tullock themselves outline methodological qualifications of the approach developed in their work The Calculus of Consent (1962), p. 30:
 * [E]ven if the model [with its rational self-interest assumptions] proves to be useful in explaining an important element of politics, it does not imply that all individuals act in accordance with the behavioral assumption made or that any one individual acts in this way at all times ... the theory of collective choice can explain only some undetermined fraction of collective action. However, so long as some part of all individual behavior ... is, in fact, motivated by utility maximization, and so long as the identification of the individual with the group does not extend to the point of making all individual utility functions identical, an economic-individualist model of political activity should be of some positive worth.

Further, Steven Pressman offers a critique of the public choice approach, arguing that public choice actually fails to explain political behavior in a number of central areas including politicians’ behavior as well as voting behavior. In the case of politicians' behavior, the public choice assumption that a politician's utility function is driven by greater political and economic power cannot account for various political phenomena. These include: why politicians vote against their constituents' interests, why they would advocate for higher taxation, fewer benefits, and smaller government, or why wealthy individuals would seek office.

As for critiques concerning voter behavior, it is argued that public choice is unable to explain why people vote due to limitations in rational choice theory. For example, from the viewpoint of rational choice theory, the expected gains of voting depend on (1) the benefit to the individual if their candidate wins, and (2) the probability that the individual's vote will determine the election's outcome. However, even in a tight election the probability that an individual's vote makes the difference is estimated to be effectively zero. This would suggest that even if an individual expects gains from their candidate's success, the expected gains from voting would also logically be near zero. When this is considered in combination with the multiple recognized costs of voting such as the opportunity cost of foregone wages, transportation costs, and more, the self-interested individual is, therefore, unlikely to vote at all (at least theoretically). Pressman is not alone in his critique, other prominent public choice economists also recognize that theorizing voting behavior is a major issue for the public choice approach. This includes critiques by Anthony Downs in An Economic Theory of Democracy, Morris P. Fiorina, and Gordon Tullock.

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title: Public choice


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Peach

The peach (Prunus persica) is a deciduous tree first domesticated and cultivated in Zhejiang province of Eastern China. It bears edible juicy fruits with various characteristics, most called peaches and others (the glossy-skinned, non-fuzzy varieties), nectarines.

The specific name persica refers to its widespread cultivation in Persia (modern-day Iran), from where it was transplanted to Europe and in the 16th century to the Americas. It belongs to the genus Prunus, which includes the cherry, apricot, almond, and plum, in the rose family. The peach is classified with the almond in the subgenus Amygdalus, distinguished from the other subgenera by the corrugated seed shell (endocarp). Due to their close relatedness, the kernel of a peach stone tastes remarkably similar to almond, and peach stones are often used to make a cheap version of marzipan, known as persipan.

Peaches and nectarines are the same species, though they are regarded commercially as different fruits. The skin of nectarines lacks the fuzz (fruit-skin trichomes) that peach skin has; a mutation in a single gene (MYB25) is thought to be responsible for the difference between the two.

In 2018, China produced 62% of the world total of peaches and nectarines. Spain, Italy, Turkey and Greece, all situated in the Mediterranean region, are prominent producers of peaches.

Description

Prunus persica trees grow up to 7 m tall and wide, but when pruned properly, they are usually 3 – tall and wide. The leaves are lanceolate, 7 – long, 2 – broad, and pinnately veined. The flowers are produced in early spring before the leaves; they are solitary or paired, 2.5–3 cm diameter, pink, with five petals. The fruit has yellow or whitish flesh, a delicate aroma, and a skin that is either velvety (peaches) or smooth (nectarines) in different cultivars. The flesh is very delicate and easily bruised in some cultivars, but is fairly firm in some commercial varieties, especially when green. The single, large seed is red-brown, oval shaped, around 1.3–2 cm long, and surrounded by a wood-like husk. Peaches, along with cherries, plums, and apricots, are stone fruits (drupes). The various heirloom varieties including the 'Indian Peach', or 'Indian Blood Peach', which ripens in the latter part of the summer, and can have color ranging from red and white, to purple.

Cultivated peaches are divided into clingstones and freestones, depending on whether the flesh sticks to the stone or not; both can have either white or yellow flesh. Peaches with white flesh typically are very sweet with little acidity, while yellow-fleshed peaches typically have an acidic tang coupled with sweetness, though this also varies greatly. Both colors often have some red on their skins. Low-acid, white-fleshed peaches are the most popular kinds in China, Japan, and neighbouring Asian countries, while Europeans and North Americans have historically favoured the acidic, yellow-fleshed cultivars.

Peach trees are relatively short-lived as compared with some other fruit trees. In some regions orchards are replanted after 8 to 10 years, while in others trees may produce satisfactorily for 20 to 25 years or more, depending upon their resistance to diseases, pests, and winter damage.

Etymology
The scientific name persica, along with the word "peach" itself – and its cognates in many European languages – derives from an early European belief that peaches were native to Persia (modern-day Iran). The Ancient Romans referred to the peach as malum persicum ("Persian apple"), later becoming French pêche, whence the English "peach". The scientific name, Prunus persica, literally means "Persian plum", as it is closely related to the plum.

Fossil record
Fossil endocarps with characteristics indistinguishable from those of modern peaches have been recovered from late Pliocene deposits in Kunming, dating to 2.6 million years ago. In the absence of evidence that the plants were in other ways identical to the modern peach, the name Prunus kunmingensis has been assigned to these fossils.

History

Although its botanical name Prunus persica refers to Persia, genetic studies suggest peaches originated in China, where they have been cultivated since the Neolithic period. Until recently, cultivation was believed to have started around 2000 BC. More recent evidence indicates that domestication occurred as early as 6000 BC in Zhejiang Province of China. The oldest archaeological peach stones are from the Kuahuqiao site near Hangzhou. Archaeologists point to the Yangtze River Valley as the place where the early selection for favorable peach varieties probably took place. Peaches were mentioned in Chinese writings and literature beginning from the early first millennium BC.

A domesticated peach appeared very early in Japan, in 4700–4400 BC, during the Jōmon period. It was already similar to modern cultivated forms, where the peach stones are significantly larger and more compressed than earlier stones. This domesticated type of peach was brought into Japan from China. Nevertheless, in China itself, this variety is currently attested only at a later date around 3300 to 2300 BC.

In India, the peach first appeared by about 1700 BC, during the Harappan period.

It is also found elsewhere in West Asia in ancient times. Peach cultivation reached Greece by 300 BC. Alexander the Great is sometimes said to have introduced them into Greece after conquering Persia, but no historical evidence for this claim has been found. Peaches were, however, well known to the Romans in the first century AD; the oldest known artistic representations of the fruit are in two fragments of wall paintings, dated to the first century AD, in Herculaneum, preserved due to the Vesuvius eruption of 79 AD, and now held in the National Archaeological Museum in Naples. Archaeological finds show that peaches were cultivated widely in Roman northwestern Continental Europe, but production collapsed around the sixth century; some revival of production followed with the Carolingian Renaissance of the ninth century.

An article on peach tree cultivation in Spain is brought down in Ibn al-'Awwam's 12th-century agricultural work, Book on Agriculture. The peach was brought to the Americas by Spanish explorers in the 16th century, and eventually made it to England and France in the 17th century, where it was a prized and expensive treat. Horticulturist George Minifie supposedly brought the first peaches from England to its North American colonies in the early 17th century, planting them at his estate of Buckland in Virginia. Although Thomas Jefferson had peach trees at Monticello, American farmers did not begin commercial production until the 19th century in Maryland, Delaware, Georgia, South Carolina, and finally Virginia.

The Shanghai honey nectar peach was a key component of both the food culture and agrarian economy the area where the modern megacity of Shanghai stands. Peaches were the cornerstone of early Shanghai's garden culture. As modernization and westernization swept through the city the Shanghai honey nectar peach nearly disappeared completely. Much of modern Shanghai is built over these gardens and peach orchards.

In April 2010, an international consortium, the International Peach Genome Initiative, which includes researchers from the United States, Italy, Chile, Spain, and France, announced they had sequenced the peach tree genome (doubled haploid Lovell). Recently, it published the peach genome sequence and related analyses. The sequence is composed of 227 million nucleotides arranged in eight pseudomolecules representing the eight peach chromosomes (2n = 16). In addition, 27,852 protein-coding genes and 28,689 protein-coding transcripts were predicted.

Particular emphasis in this study is reserved for the analysis of the genetic diversity in peach germplasm and how it was shaped by human activities such as domestication and breeding. Major historical bottlenecks were found, one related to the putative original domestication that is supposed to have taken place in China about 4,000–5,000 years ago, the second is related to the western germplasm and is due to the early dissemination of the peach in Europe from China and the more recent breeding activities in the United States and Europe. These bottlenecks highlighted the substantial reduction of genetic diversity associated with domestication and breeding activities.

Peaches in the Americas
Peaches were introduced into the Americas in the 16th century by the Spanish. By 1580, peaches were being grown in Latin America and were cultivated by the remnants of the Inca Empire in Argentina.

In the United States the peach was soon adopted as a crop by American Indians. The peach also became naturalized and abundant as a wild species in the eastern U.S.. Peaches were being grown in Virginia as early as 1629. Peaches grown by Indians in Virginia were said to have been "of greater variety and finer sorts" than those of the English colonists. Also in 1629, peaches were listed as a crop in New Mexico. William Penn noted the existence of wild peaches in Pennsylvania in 1683.

Peach plantations became an objective of American military campaigns against the Indians. In 1779, the Sullivan Expedition destroyed the livelihood of many of the Iroquois people of New York. Among the crops destroyed were plantations of peach trees. In 1864, Kit Carson led a successful U.S. army expedition to Canyon de Chelly, Arizona to destroy the livelihood of the Navajo. Carson destroyed thousands of peach trees. A soldier said they were the "best peach trees I have ever seen in the country, every one of them bearing fruit.”

Cultivation

Peaches grow in a fairly limited range in dry, continental or temperate climates, since the trees have a chilling requirement that tropical or subtropical areas generally do not satisfy except at high altitudes (for example in certain areas of Ecuador, Colombia, Ethiopia, India, and Nepal). Most cultivars require 500 hours of chilling around 0 to 10 C. During the chilling period, key chemical reactions occur, but the plant appears dormant. Once the chilling period is fulfilled, the plant enters a second type of dormancy, the quiescence period. During quiescence, buds break and grow when sufficient warm weather favorable to growth is accumulated.

The trees themselves can usually tolerate temperatures to around -26 to -30 C, although the following season's flower buds are usually killed at these temperatures, preventing a crop that summer. Flower bud death begins to occur between -15 and -25 C, depending on the cultivar and on the timing of the cold, with the buds becoming less cold tolerant in late winter.

Another climate constraint is spring frost. The trees flower fairly early (in March in Western Europe), and the blossom is damaged or killed if temperatures drop below about -4 C. If the flowers are not fully open, though, they can tolerate a few degrees colder.

Climates with significant winter rainfall at temperatures below 16 C are also unsuitable for peach cultivation, as the rain promotes peach leaf curl, which is the most serious fungal disease for peaches. In practice, fungicides are extensively used for peach cultivation in such climates, with more than 1% of European peaches exceeding legal pesticide limits in 2013.

Finally, summer heat is required to mature the crop, with mean temperatures of the hottest month between 20 and 30 C.

Typical peach cultivars begin bearing fruit in their third year. Their lifespan in the U.S. varies by region; the University of California at Davis gives a lifespan of about 15 years while the University of Maine gives a lifespan of 7 years there.

Cultivars
Hundreds of peach and nectarine cultivars are known. These are classified into two categories—freestones and clingstones. Freestones are those whose flesh separates readily from the pit. Clingstones are those whose flesh clings tightly to the pit. Some cultivars are partially freestone and clingstone, so are called semifree. Freestone types are preferred for eating fresh, while clingstone types are for canning. The fruit flesh may be creamy white to deep yellow, to dark red; the hue and shade of the color depend on the cultivar.

Peach breeding has favored cultivars with more firmness, more red color, and shorter fuzz on the fruit surface. These characteristics ease shipping and supermarket sales by improving eye appeal. This selection process has not necessarily led to increased flavor, though. Peaches have a short shelf life, so commercial growers typically plant a mix of different cultivars to have fruit to ship all season long.

Different countries have different cultivars. In the United Kingdom, for example, these cultivars have gained the Royal Horticultural Society's Award of Garden Merit:
 * 'Duke of York'
 * 'Peregrine'
 * 'Rochester'
 * 'Lord Napier' (nectarine)

For China specifically see.

Nectarines

The variety P. persica var. nucipersica (or var. nectarina) – these are commonly called nectarines – has a smooth skin. It is on occasion referred to as a "shaved peach" or "fuzzless peach", due to its lack of fuzz or short hairs. Though fuzzy peaches and nectarines are regarded commercially as different fruits, with nectarines often erroneously believed to be a crossbreed between peaches and plums, or a "peach with a plum skin", nectarines belong to the same species as peaches. Several genetic studies have concluded nectarines are produced due to a recessive allele, whereas a fuzzy peach skin is dominant. Nectarines have arisen many times from peach trees, often as bud sports.

As with peaches, nectarines can be white or yellow, and clingstone or freestone. On average, nectarines are slightly smaller and sweeter than peaches, but with much overlap. The lack of skin fuzz can make nectarine skins appear more reddish than those of peaches, contributing to the fruit's plum-like appearance. The lack of down on nectarines' skin also means their skin is more easily bruised than peaches.

The history of the nectarine is unclear; the first recorded mention in English is from 1616, but they had probably been grown much earlier within the native range of the peach in central and eastern Asia. Although one source states that nectarines were introduced into the United States by David Fairchild of the Department of Agriculture in 1906, a number of colonial-era newspaper articles make reference to nectarines being grown in the United States prior to the Revolutionary War. The 28 March 1768 edition of the New York Gazette (p. 3), for example, mentions a farm in Jamaica, Long Island, New York, where nectarines were grown.

Peacherines
Peacherines are claimed to be a cross between a peach and a nectarine, but as they are the same species cannot be a true cross (hybrid); they are marketed in Australia and New Zealand. The fruit is intermediate in appearance, though, between a peach and a nectarine, large and brightly colored like a red peach. The flesh of the fruit is usually yellow, but white varieties also exist. The Koanga Institute lists varieties that ripen in the Southern Hemisphere in February and March.

In 1909, Pacific Monthly mentioned peacherines in a news bulletin for California. Louise Pound, in 1920, claimed the term peacherine is an example of language stunt.

Flat peaches
Flat peaches, or pan-tao, have a flattened shape, in contrast to ordinary near-spherical peaches.

Planting

Most peach trees sold by nurseries are cultivars budded or grafted onto a suitable rootstock. Common rootstocks are 'Lovell Peach', 'Nemaguard Peach', Prunus besseyi, and 'Citation'. The rootstock provides hardiness and budding is done to improve predictability of the fruit quality.

Peach trees need full sun, and a layout that allows good natural air flow to assist the thermal environment for the tree. Peaches are planted in early winter. During the growth season, they need a regular and reliable supply of water, with higher amounts just before harvest.

Peaches need nitrogen-rich fertilizers more than other fruit trees. Without regular fertilizer supply, peach tree leaves start turning yellow or exhibit stunted growth. Blood meal, bone meal, and calcium ammonium nitrate are suitable fertilizers.

The flowers on a peach tree are typically thinned out because if the full number of peaches mature on a branch, they are undersized and lack flavor. Fruits are thinned midway in the season by commercial growers. Fresh peaches are easily bruised, so do not store well. They are most flavorful when they ripen on the tree and are eaten the day of harvest.

The peach tree can be grown in an espalier shape. The Baldassari palmette is a design created around 1950 used primarily for training peaches. In walled gardens constructed from stone or brick, which absorb and retain solar heat and then slowly release it, raising the temperature against the wall, peaches can be grown as espaliers against south-facing walls as far north as southeast Great Britain and southern Ireland.

Insects
The first pest to attack the tree early in the year when other food is scarce is the earwig (Forficula auricularia) which feeds on blossoms and young leaves at night, preventing fruiting and weakening newly planted trees. The pattern of damage is distinct from that of caterpillars later in the year, as earwigs characteristically remove semicircles of petal and leaf tissue from the tips, rather than internally. Greasebands applied just before blossom are effective.

The larvae of such moth species as the peachtree borer (Synanthedon exitiosa), the yellow peach moth (Conogethes punctiferalis), the well-marked cutworm (Abagrotis orbis), Lyonetia prunifoliella, Phyllonorycter hostis, the fruit tree borer (Maroga melanostigma), Parornix anguliferella, Parornix finitimella, Caloptilia zachrysa, Phyllonorycter crataegella, Trifurcula sinica, Suzuki's promolactis moth (Promalactis suzukiella), the white-spotted tussock moth (Orgyia thyellina), the apple leafroller (Archips termias), the catapult moth (Serrodes partita), the wood groundling (Parachronistis albiceps) or the omnivorous leafroller (Platynota stultana) are reported to feed on P. persica. The flatid planthopper (Metcalfa pruinosa) causes damage to fruit trees.

The tree is also a host plant for such species as the Japanese beetle (Popillia japonica), the unmonsuzume (Callambulyx tatarinovii), the promethea silkmoth (Callosamia promethea), the orange oakleaf (Kallima inachus), Langia zenzeroides, the speckled emperor (Gynanisa maja) or the brown playboy (Deudorix antalus). The European red mite (Panonychus ulmi) or the yellow mite (Lorryia formosa) are also found on the peach tree.

It is a good pollen source for honey bees and a honeydew source for aphids.

Diseases
Peach trees are prone to a disease called leaf curl, which usually does not directly affect the fruit, but does reduce the crop yield by partially defoliating the tree. Several fungicides can be used to combat the disease, including Bordeaux mixture and other copper-based products (the University of California considers these organic treatments), ziram, chlorothalonil, and dodine. The fruit is susceptible to brown rot or a dark reddish spot.

Storage
Peaches and nectarines are best stored at temperatures of 0 °C (32 °F) and in high humidity. They are highly perishable, so are typically consumed or canned within two weeks of harvest.

Peaches are climacteric  fruits and continue to ripen after being picked from the tree.

Production
In 2020, world production of peaches (combined with nectarines for reporting) was 24.6 million tonnes, led by China with 61% of the world total (table).

The U.S. state of Georgia is known as the "Peach State" due to its significant production of peaches as early as 1571, with exports to other states occurring around 1858. In 2014, Georgia was third in US peach production behind California and South Carolina. The largest peach producing countries in Latin America are Argentina, Brazil, Chile, and Mexico.

Cultural significance
Peaches are not only a popular fruit, but also are symbolic in many cultural traditions, such as in art, paintings, and folk tales such as the Peaches of Immortality.

China
Peach blossoms are highly prized in Chinese culture. The ancient Chinese believed the peach to possess more vitality than any other tree because their blossoms appear before leaves sprout. When early rulers of China visited their territories, they were preceded by sorcerers armed with peach rods to protect them from spectral evils. On New Year's Eve, local magistrates would cut peach wood branches and place them over their doors to protect against evil influences. Peach wood was also used for the earliest known door gods during the Han. Another author writes:

"The Chinese also considered peach wood (t'ao-fu) protective against evil spirits, who held the peach in awe. In ancient China, peach-wood bows were used to shoot arrows in every direction in an effort to dispel evil. Peach-wood slips or carved pits served as amulets to protect a person's life, safety, and health."

Peachwood seals or figurines guarded gates and doors, and, as one Han account recites, "the buildings in the capital are made tranquil and pure; everywhere a good state of affairs prevails". Writes the author, further:

"Another aid in fighting evil spirits were peach-wood wands. The Li-chi (Han period) reported that the emperor went to the funeral of a minister escorted by a sorcerer carrying a peachwood wand to keep bad influences away. Since that time, peachwood wands have remained an important means of exorcism in China." Peach kernels (桃仁 táo rén) are a common ingredient used in traditional Chinese medicine to dispel blood stasis, counter inflammation, and reduce allergies.

In an orchard of flowering peach trees, Liu Bei, Guan Yu, and Zhang Fei took an oath of brotherhood in the opening chapter of the classic Chinese novel Romance of the Three Kingdoms. Another peach orchard, in "The Peach Blossom Spring" by poet Tao Yuanming, is the setting of the favourite Chinese fable and a metaphor for utopias. A peach tree growing on a precipice was where the Taoist master Zhang Daoling tested his disciples.

The Old Man of the South Pole, one of the deities of the Chinese folk religion fulu shou, is sometimes seen holding a large peach, representing long life and health.

The term "bitten peach", first used by Legalist philosopher Han Fei in his work Han Feizi, became a byword for homosexuality. The book records the incident when courtier Mizi Xia bit into an especially delicious peach and gave the remainder to his lover, Duke Ling of Wei, as a gift so that he could taste it, as well.

Korea
In Korea, peaches have been cultivated from ancient times. According to Samguk Sagi, peach trees were planted during the Three Kingdoms of Korea period, and Sallim gyeongje also mentions cultivation skills of peach trees. The peach is seen as the fruit of happiness, riches, honours, and longevity. The rare peach with double seeds is seen as a favorable omen of a mild winter. It is one of the 10 immortal plants and animals, so peaches appear in many minhwa (folk paintings). Peaches and peach trees are believed to chase away spirits, so peaches are not placed on tables for jesa (ancestor veneration), unlike other fruits.

Japan
The world's sweetest peach is grown in Fukushima, Japan. The Guinness world record for the sweetest peach is currently held by a peach grown in Kanechika, Japan, with a sugar content of 22.2%. However, a fruit farm in rural Fukushima, Koji grew a much sweeter peach, with a Brix score of 32°. Degrees Brix measures the sugar content of the fruit, and is usually between 11 and 15 for a typical peach from a supermarket.

Momotarō, a folktale character, is named after the giant peach from which he was birthed.

Two traditional Japanese words for the color pink correspond to blossoming trees: one for peach blossoms, and one for cherry blossoms (Cherry blossom).

Vietnam
A Vietnamese mythic history states that in the spring of 1789, after marching to Ngọc Hồi and then winning a great victory against invaders from the Qing dynasty of China, Emperor Quang Trung ordered a messenger to gallop to Phú Xuân citadel (now Huế) and deliver a flowering peach branch to the Empress Ngọc Hân. This took place on the fifth day of the first lunar month, two days before the predicted end of the battle. The branch of peach flowers that was sent from the north to the centre of Vietnam was not only a message of victory from the Emperor to his consort, but also the start of a new spring of peace and happiness for all the Vietnamese people. In addition, since the land of Nhật Tân had freely given that very branch of peach flowers to the Emperor, it became the loyal garden of his dynasty.

The protagonists of The Tale of Kieu fell in love by a peach tree, and in Vietnam, the blossoming peach flower is the signal of spring. Finally, peach bonsai trees are used as decoration during Vietnamese New Year (Tết) in northern Vietnam.

Europe

Many famous artists have painted with peach fruits placed in prominence. Caravaggio, Vicenzo Campi, Pierre-Auguste Renoir, Claude Monet, Édouard Manet, Henri Fantin-Latour, Severin Roesen, Peter Paul Rubens, and Van Gogh are among the many influential artists who painted peaches and peach trees in various settings. Scholars suggest that many compositions are symbolic, some an effort to introduce realism. For example, Tresidder claims the artists of Renaissance symbolically used peach to represent heart, and a leaf attached to the fruit as the symbol for tongue, thereby implying speaking truth from one's heart; a ripe peach was also a symbol to imply a ripe state of good health. Caravaggio's paintings introduce realism by painting peach leaves that are molted, discolored, or in some cases have wormholes – conditions common in modern peach cultivation.

In literature, Roald Dahl named his children's fantasy novel James and the Giant Peach because a peach is "prettier, bigger and squishier than a cherry."

United States

South Carolina named the peach its official fruit in 1984. The peach became the state fruit of Georgia, nicknamed the "Peach State", in 1995. The peach went from feral trees utilized opportunistically to a tended commercial crop in the Southern United States in the 1850s, as the boll weevil attacked regional cotton crops. When Georgia reached peak production in the 1920s, elaborate festivals celebrated the fruit. By 2017, Georgia's production represented 3–5% of the U.S. total. Alabama named it the "state tree fruit" in 2006. Delaware's state flower has been the peach blossom since 1995, and peach pie became its official dessert in 2009.

Nutrition
Raw peach flesh is 89% water, 10% carbohydrates, 1% protein, and contains negligible fat. A medium-sized raw peach, weighing 100 g, supplies 39 calories, and contains small amounts of essential nutrients, but none is a significant proportion of the Daily Value (DV, right table). A raw nectarine has similar low content of nutrients. The glycemic load of an average peach (120 grams) is 5, similar to other low-sugar fruits.

One medium peach also contains 2% or more daily value of vitamins E and K, niacin, folate, iron, choline, potassium, magnesium, phosphorus, manganese, zinc and copper. Fresh peaches are a moderate source of antioxidants and vitamin C which is required for the building of connective tissue inside the human body.

Phytochemicals
Total polyphenols in mg per 100 g of fresh weight were 14–102 in white-flesh nectarines, 18–54 in yellow-flesh nectarines, 28–111 in white-flesh peaches, and 21–61 mg per 100 g in yellow-flesh peaches. The major phenolic compounds identified in peach are chlorogenic acid, catechins and epicatechins, with other compounds, identified by HPLC, including gallic acid and ellagic acid. Rutin and isoquercetin are the primary flavonols found in clingstone peaches.

Red-fleshed peaches are rich in anthocyanins, particularly cyanidin glucosides in six peach and six nectarine cultivars and malvin glycosides in clingstone peaches. As with many other members of the rose family, peach seeds contain cyanogenic glycosides, including amygdalin (note the subgenus designation: Amygdalus). These substances are capable of decomposing into a sugar molecule and hydrogen cyanide gas. Cyanogenic glycosides are toxic if consumed in large doses. While peach seeds are not the most toxic within the rose family (see bitter almond), large consumption of these chemicals from any source is potentially hazardous to animal and human health.

Peach allergy or intolerance is a relatively common form of hypersensitivity to proteins contained in peaches and related fruits (such as almonds). Symptoms range from local effects (e.g. oral allergy syndrome, contact urticaria) to more severe systemic reactions, including anaphylaxis (e.g. urticaria, angioedema, gastrointestinal and respiratory symptoms). Adverse reactions are related to the "freshness" of the fruit: peeled or canned fruit may be tolerated.

Aroma
Some 110 chemical compounds contribute to peach aroma, including alcohols, ketones, aldehydes, esters, polyphenols and terpenoids.

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Onion

An onion (Allium cepa L., from Latin cepa meaning "onion"), also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus Allium. The shallot is a botanical variety of the onion which was classified as a separate species until 2011. Its close relatives include garlic, scallion, leek, and chive.

This genus also contains several other species variously referred to as onions and cultivated for food, such as the Japanese bunching onion Allium fistulosum, the tree onion Allium × proliferum, and the Canada onion Allium canadense. The name wild onion is applied to a number of Allium species, but A. cepa is exclusively known from cultivation. Its ancestral wild original form is not known, although escapes from cultivation have become established in some regions. The onion is most frequently a biennial or a perennial plant, but is usually treated as an annual and harvested in its first growing season.

The onion plant has a fan of hollow, bluish-green leaves, and its bulb at the base of the plant begins to swell when a certain day-length is reached. The bulbs are composed of shortened, compressed, underground stems surrounded by fleshy modified scale (leaves) that envelop a central bud at the tip of the stem. In the autumn (or in spring, in the case of overwintering onions), the foliage dies down and the outer layers of the bulb become more dry, and brittle. The crop is harvested and dried and the onions are ready for use or storage. The crop is prone to attack by a number of pests and diseases, particularly the onion fly, the onion eelworm, and various fungi which can cause rotting. Some varieties of A. cepa, such as shallots and potato onions, produce multiple bulbs.

Onions are cultivated and used around the world. As a food item, they are often served raw as a vegetable or part of a prepared savoury dish, but can also be eaten cooked or used to make pickles or chutneys. They are pungent when chopped and contain certain chemical substances which may irritate the eyes.

Taxonomy and etymology
The onion plant (Allium cepa), also known as the bulb onion or common onion, is the most widely cultivated species of the genus Allium. It was first officially described by Carl Linnaeus in his 1753 work Species Plantarum. A number of synonyms have appeared in its taxonomic history:
 * Allium cepa var. aggregatum – G. Don
 * Allium cepa var. bulbiferum – Regel
 * Allium cepa var. cepa – Linnaeus
 * Allium cepa var. multiplicans – L.H. Bailey
 * Allium cepa var. proliferum – (Moench) Regel
 * Allium cepa var. solaninum – Alef
 * Allium cepa var. viviparum – (Metz) Mansf.

A. cepa is known exclusively from cultivation, but related wild species occur in Central Asia and Iran. The most closely related species include A. vavilovii from Turkmenistan and A. asarense from Iran.

The vast majority of cultivars of A. cepa belong to the common onion group (A. cepa var. cepa) and are usually referred to simply as onions. The Aggregatum Group of cultivars (A. cepa var. aggregatum) includes both shallots and potato onions.

The genus Allium also contains a number of other species variously referred to as onions and cultivated for food, such as the Japanese bunching onion (A. fistulosum), Egyptian onion (A. × proliferum), and Canada onion (A. canadense).

Cepa is commonly accepted as Latin for "onion" and has an affinity with Ancient Greek: κάπια (kápia) and Albanian: qepë and is ancestral to Aromanian: tseapã, Catalan: ceba, Occitan: ceba, Portuguese: cebola, Spanish: cebolla, Italian: cipolla, and Romanian: ceapă. The English word "chive" is also derived from the Old French cive, which derived from cepa.

Description
The onion has been grown and selectively bred in cultivation for at least 7,000 years. It is a biennial plant but is usually grown as an annual. Modern varieties typically grow to a height of 15 to 45 cm. The leaves are yellowish- to bluish green and grow alternately in a flattened, fan-shaped swathe. They are fleshy, hollow, and cylindrical, with one flattened side. They are at their broadest about a quarter of the way up, beyond which they taper to blunt tips. The base of each leaf is a flattened, usually white sheath that grows out of the basal plate of a bulb. From the underside of the plate, a bundle of fibrous roots extends for a short way into the soil. As the onion matures, food reserves accumulate in the leaf bases, and the bulb of the onion swells. In the autumn, the leaves die back, and the outer scales of the bulb become dry and brittle, so the crop is normally harvested. If left in the soil over winter, the growing point in the middle of the bulb begins to develop in the spring. New leaves appear, and a long, stout, hollow stem expands, topped by a bract protecting a developing inflorescence. The inflorescence takes the form of a rounded umbel of white flowers with parts in sixes. The seeds are glossy black and triangular in cross-section. The average pH of an onion is around 5.5.

History

The history of ancestral onion species is not well documented. Ancient records of onion use spans western and eastern Asia, so the geographic origin of the onion is uncertain. Yet, domestication likely took place in West or Central Asia. Onions have been variously described as having originated in Iran, western Pakistan and Central Asia.

Traces of onions recovered from Bronze Age settlements in China suggest that onions were used as far back as 5000 BC, not only for their flavour, but also for the bulb's durability in storage and transport. Ancient Egyptians revered the onion bulb, viewing its spherical shape and concentric rings as symbols of eternal life. Onions were used in Egyptian burials, as evidenced by onion traces found in the eye sockets of Ramesses IV.

Pliny the Elder of the first century AD wrote about the use of onions and cabbage in Pompeii. He documented Roman beliefs about the onion's ability to improve ocular ailments, aid in sleep, and heal everything from oral sores and toothaches to dog bites, lumbago, and even dysentery. Archaeologists unearthing Pompeii long after its 79 AD volcanic burial have found gardens resembling those in Pliny's detailed narratives. According to texts collected in the fifth/sixth century AD under the authorial aegis of "Apicius" (said to have been a gourmet), onions were used in many Roman recipes.

In the Age of Discovery, onions were taken to North America by the first European settlers, who found close relatives of the plant such as Allium tricoccum readily available and widely used in Native American gastronomy. According to diaries kept by certain first English colonists, the bulb onion was one of the first crops planted by the Pilgrims.

Onion types and products
Common onions are normally available in three colour varieties: While the large, mature onion bulb is most often eaten, onions can be eaten at immature stages. Young plants may be harvested before bulbing occurs and used whole as spring onions or scallions. When an onion is harvested after bulbing has begun, but the onion is not yet mature, the plants are sometimes referred to as "summer" onions.
 * Yellow or brown onions are sweet, with many cultivars bred specifically to accentuate this sweetness, such as Vidalia, Walla Walla, Cévennes, and Bermuda. Yellow onions turn a rich, dark brown when caramelised and are used to add a sweet flavour to various dishes, such as French onion soup.
 * Red or purple onions, known for their sharp pungent flavour, are commonly cooked in many cuisines. They are also used raw and in grilling.
 * White onions are mild in flavour; they have a golden colour when cooked and a particularly sweet flavour when sautéed.

Additionally, onions may be bred and grown to mature at smaller sizes. Depending on the mature size and the purpose for which the onion is used, these may be referred to as pearl, boiler, or pickler onions, but differ from true pearl onions which are a different species. Pearl and boiler onions may be cooked as a vegetable rather than as an ingredient and pickler onions are often preserved in vinegar as a long-lasting relish.

Onions are available in fresh, frozen, canned, caramelised, pickled, and chopped forms. The dehydrated product is available as kibbled, sliced, ring, minced, chopped, granulated, and powder forms.

Onion powder is a seasoning widely used when the fresh ingredient is not available. It is made from finely ground, dehydrated onions, mainly the pungent varieties of bulb onions, and has a strong odour. Being dehydrated, it has a long shelf life and is available in several varieties: yellow, red, and white.

Culinary
Onions are commonly chopped and used as an ingredient in various hearty warm dishes, and may also be used as a main ingredient in their own right, for example in French onion soup, creamed onions, and onion chutney. They are versatile and can be baked, boiled, braised, grilled, fried, roasted, sautéed, or eaten raw in salads. Their layered nature makes them easy to hollow out once cooked, facilitating stuffing them, as in Turkish sogan-dolma.

Onions pickled in vinegar are eaten as a snack around the world, and as a side serving in pubs and fish and chip shops throughout the United Kingdom and the Commonwealth. They are part of a traditional British pub's ploughman's lunch, usually served with crusty bread, English cheese, and ale.

Similar to garlic, onions can show an additional colour – pink-red – after cutting, an effect caused by reactions of amino acids with sulfur compounds.

Oils
Onion oil is authorised for use in the European Union for use as a pesticide against carrot fly in umbelliferous crops (carrots, parsnips, parsley, celery, celeriac). Onions also contain one of the natural oils sometimes used in hair oil.

Education
Onions have particularly large cells that are readily observed under low magnification. Forming a single layer of cells, the bulb epidermis is easy to separate for educational, experimental, and breeding purposes. Onions are therefore commonly used in science education to teach the use of a microscope for observing cell structure.

Dye
Onion skins can be boiled to make an orange-brown dye.

Nutrients
Most onion cultivars are about 89% water, 9% carbohydrates (including 4% sugar and 2% dietary fibre), 1% protein, and negligible fat (table). Onions contain low amounts of essential nutrients and have an energy value of 166 kJ (40 kilocalories) in a 100 g (3.5 oz) amount. Onions contribute savoury flavour to dishes without contributing significant caloric content.

Phytochemicals
Considerable differences exist between onion varieties in phytochemical content, particularly for polyphenols, with shallots having the highest level, six times the amount found in Vidalia onions. Yellow onions have the highest total flavonoid content, an amount 11 times higher than in white onions. Red onions have considerable content of anthocyanin pigments, with at least 25 different compounds identified representing 10% of total flavonoid content.

Onion polyphenols are under basic research to determine their possible biological properties in humans.

Allergic reactions
Some people suffer from allergic reactions after handling onions. Symptoms can include contact dermatitis, intense itching, rhinoconjunctivitis, blurred vision, bronchial asthma, sweating, and anaphylaxis. Allergic reactions may not occur when eating cooked onions, possibly due to the denaturing of the proteins from cooking.

Eye irritation

Freshly cut onions often cause a stinging sensation in the eyes of people nearby, and often uncontrollable tears. This is caused by the release of a volatile liquid, syn-propanethial-S-oxide and its aerosol, which stimulates nerves in the eye. This gas is produced by a chain of reactions which serve as a defence mechanism: chopping an onion causes damage to cells which releases enzymes called alliinases. These break down amino acid sulfoxides and generate sulfenic acids. A specific sulfenic acid, 1-propenesulfenic acid, is rapidly acted on by a second enzyme, the lacrimatory factor synthase (LFS), producing the syn-propanethial-S-oxide. This gas diffuses through the air and soon reaches the eyes, where it activates sensory neurons. Lacrimal glands produce tears to dilute and flush out the irritant.

Eye irritation can be avoided by cutting onions under running water or submerged in a basin of water. Leaving the root end intact also reduces irritation as the onion base has a higher concentration of sulphur compounds than the rest of the bulb.

The amount of sulfenic acids and lacrimal factor released and the irritation effect differs among Allium species. In 2008, the New Zealand Institute for Crop and Food Research created "no tears" onions by genetic modification to prevent the synthesis of lachrymatory factor synthase in onions. One study suggests that consumers prefer the flavour of onions with lower LFS content. Since the process impedes sulfur ingestion by the plant, some find LFS− onions inferior in flavour.

A method for efficiently differentiating LFS− and LFS+ onions has been developed based on mass spectrometry, with potential application in high-volume production; gas chromatography is also used to measure lachrymatory factor in onions. In early 2018, Bayer released the first crop yield of commercially available LFS-silenced onions under the name "Sunions". They were the product of 30 years of cross-breeding; genetic modification was not employed.

Guinea hen weed and honey garlic contain a similar lachrymatory factor. Synthetic onion lachrymatory factor has been used in a study related to tear production, and has been proposed as a nonlethal deterrent against thieves and intruders.

Toxicity to animals
Onions are toxic to dogs, cats, guinea pigs, and many other animals.

Cultivation

Onions are best cultivated in fertile soils that are well-drained. Sandy loams are good as they are low in sulphur, while clayey soils usually have a high sulphur content and produce pungent bulbs. Onions require a high level of nutrients in the soil. Phosphorus is often present in sufficient quantities, but may be applied before planting because of its low level of availability in cold soils. Nitrogen and potash can be applied at regular intervals during the growing season, the last application of nitrogen being at least four weeks before harvesting.

Bulbing onions are day-length sensitive; their bulbs begin growing only after the number of daylight hours has surpassed some minimal quantity. Most traditional European onions are referred to as "long-day" onions, producing bulbs only after 14 hours or more of daylight occurs. Southern European and North African varieties are often known as "intermediate-day" types, requiring only 12–13 hours of daylight to stimulate bulb formation. "Short-day" onions, which have been developed in more recent times, are planted in mild-winter areas in the autumn and form bulbs in the early spring, and require only 11–12 hours of daylight to stimulate bulb formation. Onions are a cool-weather crop and can be grown in USDA zones 3 to 9. Hot temperatures or other stressful conditions cause them to "bolt", meaning that a flower stem begins to grow. Onions may be grown from seeds or from partially grown bulbs called "sets" or starter bulbs. Because onion seeds are short-lived, fresh seeds germinate more effectively when sown in shallow rows, or "drills," with each drill 12" to 18" apart. In suitable climates, certain cultivars can be sown in late summer and autumn to overwinter in the ground and produce early crops the following year.

Onion bulbs are produced by sowing seeds in a dense pattern in early summer, then harvested in the autumn when the bulbs are still small, followed by drying and storage. These bulbs planted the following spring grow into mature bulbs later in the growing season. Certain cultivars used for growing and storing bulbs may not have such good storage characteristics as those grown directly from seed.

Routine care during the growing season involves keeping the rows free of competing weeds, especially when the plants are young. The plants are shallow-rooted and do not need much water when established. Bulbing usually takes place after 12 to 18 weeks. The bulbs can be gathered when needed to eat fresh, but if they will be stored, they are harvested after the leaves have died back naturally. In dry weather, they can be left on the surface of the soil for a few days for drying, then placed in nets, roped into strings, or laid in layers in shallow boxes. They are stored effectively in a well-ventilated, cool place.

Pests and diseases

Onions suffer from a number of plant disorders. The most serious for the home gardener are likely to be the onion fly, stem and bulb eelworm, white rot, and neck rot. Diseases affecting the foliage include rust and smut, downy mildew, and white tip disease. The bulbs may be affected by splitting, white rot, and neck rot. Shanking is a condition in which the central leaves turn yellow and the inner part of the bulb collapses into an unpleasant-smelling slime. Most of these disorders are best treated by removing and burning affected plants. The larvae of the onion leaf miner or leek moth (Acrolepiopsis assectella) sometimes attack the foliage and may burrow down into the bulb.

The onion fly (Delia antiqua) lays eggs on the leaves and stems and on the ground close to onion, shallot, leek, and garlic plants. The fly is attracted to the crop by the smell of damaged tissue and is liable to occur after thinning. Plants grown from sets are less prone to attack. The larvae tunnel into the bulbs and the foliage wilts and turns yellow. The bulbs are disfigured and rot, especially in wet weather. Control measures may include crop rotation, the use of seed dressings, early sowing or planting, and the removal of infested plants.

The onion eelworm (Ditylenchus dipsaci), a tiny parasitic soil-living nematode, causes swollen, distorted foliage. Young plants are killed and older ones produce soft bulbs. No cure is known and affected plants should be uprooted and burned. The site should not be used for growing onions again for several years and should also be avoided for growing carrots, parsnips, and beans, which are also susceptible to the eelworm.

White rot of onions, leeks, and garlic is caused by the soil-borne fungus Sclerotium cepivorum. As the roots rot, the foliage turns yellow and wilts. The bases of the bulbs are attacked and become covered by a fluffy white mass of mycelia, which later produces small, globular black structures called sclerotia. These resting structures remain in the soil to reinfect a future crop. No cure for this fungal disease exists, so affected plants should be removed and destroyed and the ground used for unrelated crops in subsequent years.

Neck rot is a fungal disease affecting onions in storage. It is caused by Botrytis allii, which attacks the neck and upper parts of the bulb, causing a grey mould to develop. The symptoms often first occur where the bulb has been damaged and spread down the affected scales. Large quantities of spores are produced and crust-like sclerotia may also develop. In time, a dry rot sets in and the bulb becomes a dry, mummified structure. This disease may be present throughout the growing period, but only manifests itself when the bulb is in storage. Antifungal seed dressings are available and the disease can be minimised by preventing physical damage to the bulbs at harvesting, careful drying and curing of the mature onions, and correct storage in a cool, dry place with plenty of circulating air.

Production

In 2022, world production of onions and shallots (as green produce) was 5.0 million tonnes, led by China with 17% of the total, and Mali, Angola, and Japan as secondary producers (table).

In the home
Cooking onions and sweet onions are better stored at room temperature, optimally in a single layer, in large mesh bags in a dry, cool, dark, well-ventilated location. In this environment, cooking onions have a shelf life of three to four weeks and sweet onions one to two weeks. Cooking onions will absorb odours from apples and pears. Also, they draw moisture from vegetables with which they are stored which may cause them to decay.

Sweet onions have a greater water and sugar content than cooking onions. This makes them sweeter and milder tasting, but reduces their shelf life. Sweet onions can be stored refrigerated; they have a shelf life of around 1 month. Irrespective of type, any cut pieces of onion are best tightly wrapped, stored away from other produce, and used within two to three days.

Common onion group (var. cepa)
Most of the diversity within A. cepa occurs within this group, the most economically important Allium crop. Plants within this group form large single bulbs, and are grown from seed or seed-grown sets. The majority of cultivated varieties grown for dry bulbs, salad onions, and pickling onions belong to this group. The range of diversity found among these cultivars includes variation in photoperiod (length of day that triggers bulbing), storage life, flavour, and skin colour. Common onions range from the pungent varieties used for dried soups and onion powder to the mild and hearty sweet onions, such as the Vidalia from Georgia, US, or Walla Walla from Washington that can be sliced and eaten raw on a sandwich.

Aggregatum group (var. aggregatum)
This group contains shallots and potato onions, also referred to as multiplier onions. The bulbs are smaller than those of common onions, and a single plant forms an aggregate cluster of several bulbs from a master. They are propagated almost exclusively from daughter bulbs, although reproduction from seed is possible. Shallots are the most important subgroup within this group and comprise the only cultivars cultivated commercially. They form aggregate clusters of small, narrowly ovoid to pear-shaped bulbs. Potato onions differ from shallots in forming larger bulbs with fewer bulbs per cluster, and having a flattened (onion-like) shape. Intermediate forms exist.

I'itoi onion is a prolific multiplier onion cultivated in the Baboquivari Peak Wilderness, Arizona area. This small-bulb type has a shallot-like flavour and is easy to grow and ideal for hot, dry climates. Bulbs are separated, and planted in the fall 1 in below the surface and 12 in apart. Bulbs will multiply into clumps and can be harvested throughout the cooler months. Tops die back in the heat of summer and may return with heavy rains; bulbs can remain in the ground or be harvested and stored in a cool dry place for planting in the fall. The plants rarely flower; propagation is by division.

Hybrids with A. cepa parentage
A number of hybrids are cultivated that have A. cepa parentage, such as the diploid tree onion or Egyptian onion (A. ×proliferum), and the triploid onion (A. ×cornutum).

The tree onion or Egyptian onion produces bulblets in the umbel instead of flowers, and is now known to be a hybrid of A. cepa and A. fistulosum. It has previously been treated as a variety of A. cepa, for example A. cepa var. proliferum, A. cepa var. bulbiferum, and A. cepa var. viviparum. It has been grown for centuries in Japan and China for use as a salad onion.

The triploid onion is a hybrid species with three sets of chromosomes, two sets from A. cepa and the third set from an unknown parent. Various clones of the triploid onion are grown locally in different regions, such as 'Ljutika' in Croatia, and 'Pran', 'Poonch', and 'Srinagar' in the India-Kashmir region. 'Pran' is grown extensively in the northern Indian provinces of Jammu and Kashmir. There are very small genetic differences between 'Pran' and the Croatian clone 'Ljutika', implying a monophyletic origin for this species.

Some authors have used the name A. cepa var. viviparum (Metzg.) Alef. for the triploid onion, but this name has also been applied to the Egyptian onion. The only name unambiguously connected with the triploid onion is A. ×cornutum.

Spring onions or salad onions may be grown from the Welsh onion (A. fistulosum), as well as from A. cepa. Young plants of A. fistulosum and A. cepa look very similar, but may be distinguished by their leaves, which are circular in cross-section in A. fistulosum rather than flattened on one side.

title: Onion


text:
Montgomery County, New York

Montgomery County is a county in the U.S. state of New York. As of the 2020 census, the population was 49,532. The county seat is Fonda. The county was named in honor of Richard Montgomery, an American Revolutionary War general killed in 1775 at the Battle of Quebec. The county is part of the Mohawk Valley region of the state.

Historically occupied by the Mohawk people, one of the original Five Nations of the Iroquois Confederacy, the county was created in 1772 during the period of British colonial rule as Tryon County. In 1784, after the Americans gained independence in the War, it was renamed Montgomery County for one of the heroes.

Montgomery County comprises the Amsterdam, NY micropolitan statistical area. The county borders the north and south banks of the Mohawk River.

History
This area was occupied by the Mohawk for hundreds of years prior to European colonization. Many warriors allied with the British during the war. When the British lost, they ceded all the Iroquois territory of the Six Nations (the Tuscarora had joined the confederacy in the 18th century) to the United States, without consulting the tribes or bringing them into negotiation.

In 1784, following end of the American Revolutionary War, the European-American settlers renamed Tryon County as Montgomery County. This change was to honor the general, Richard Montgomery, who had captured several places in Canada and died in 1775 attempting to capture the city of Quebec during the Revolutionary War. It replaced the name that formerly honored the last provincial governor of New York.

In 1789, Ontario County was split off from Montgomery. The area of the new county was much larger than the present Ontario County, as it included the present Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston, Monroe, Niagara, Orleans, Steuben, Wyoming, Yates, and part of Schuyler and Wayne counties.

In 1791, Herkimer, Otsego, and Tioga counties were split off from Montgomery. In 1802, portions of Clinton, Herkimer, and Montgomery counties were combined to form St. Lawrence County. In 1816, Hamilton County was split off from Montgomery, but it did not have enough taxable inhabitants to be separately organized until 1847. In May 1836, the county seat was moved from Johnstown to Fonda, and in April 1838, Fulton County was split off, with Johnstown regaining that rank for the new Fulton County.

In 2012, Montgomery County voters approved a charter for government, making it the 21st county in New York state to do so. In 2013, Matthew L. Ossenfort was elected at-large as the first County Executive in the county's history. Ossenfort took office in 2014, the same year the charter went into effect. Under the terms of the charter, the Board of Supervisors was replaced by a nine-member County Legislature, with members elected from single-member districts. Thomas L. Quackenbush, one of the members, was elected as the first chairman of the new legislative body, which will be a circulating position.

Congressional districts

 * 1789–1797 - None
 * 1797–1803 - NY9
 * 1803–1809 - NY13
 * 1809–1813 - NY9
 * 1813–1823 - NY14
 * 1823–1833 - NY16
 * 1833–1843 - NY15
 * 1843–1853 - NY17
 * 1853–1873 - NY18
 * 1873–1875 - NY19
 * 1875–1893 - NY20
 * 1893–1913 - ?
 * 1913–1945 - NY30
 * 1945–1953 - NY31
 * 1953–1963 - NY32
 * 1963–1971 - NY35
 * 1971–1973 - NY28 & NY29
 * 1973–1983 - NY28 & NY31
 * 1983–1993 - NY23 & ?
 * 1993–2003 - NY21 & NY23
 * 2003–2013- NY21
 * 2013–2023 - NY19 & NY20
 * 2023-present - NY21

Geography
According to the U.S. Census Bureau, the county has a total area of 410 sqmi, of which 403 sqmi is land and 7.3 sqmi (1.8%) is water.

Montgomery County is located in the central part of the state, west of the city of Schenectady and northwest of Albany.

Adjacent counties

 * Fulton County - north
 * Saratoga County - east
 * Schenectady County - east
 * Schoharie County - south
 * Otsego County - southwest
 * Herkimer County - west

The Erie Canal runs through Montgomery County parallel to the Mohawk River, connecting to the Wood River to the west, which leads to Lake Ontario. Overall, the canal connected Great Lakes shipping with the Hudson River and the port of New York on the Atlantic Ocean. Several towns and villages developed along the canal, as it carried much trade and passenger traffic during its peak years. After the railroad was built through the state, along the same river plain, it superseded the canal, which was filled in some areas.

At the time of the canal's construction, Montgomery County was the only place where there was a break in the Appalachian Mountains. Called 'The Noses' because of canal construction, it became known as "the gateway to the West". In the mid-twentieth century, the NYS Thruway was constructed parallel to the former east–west routes of the canal and railroad. Today the Erie Canal and its lock system is used primarily for recreational boat use among locals and tourists.

Montgomery County is located in the heart of the state's Mohawk Valley region. Foothills of the Catskill Mountains dot the southern part of the county, while foothills of the Adirondack Mountains dot the north.

Demographics

As of the census of 2010, there were 50,208 people, 20,073 households, and 13,131 families residing in the county. The population density was 123 /mi2. There were 22,522 housing units at an average density of 56 /mi2. The racial makeup of the county was 92.87% (83.8% Non-Hispanic; 9.07 White Hispanic) White, 1.15% African American, 0.25% Native American, 0.53% Asian, 0.01% Pacific Islander, 3.92% from other races, and 1.27% from two or more races. Hispanic or Latino of any race were 12.91% of the population. 19.0% identified as being of Italian, 15.9% German, 13.5% Polish, 9.8% Puerto Rican 9.1% Irish, 7.9% American and 6.4% English ancestry, according to Census 2010. 86.8% spoke English, 9.3% Spanish,1.8% Italian, and 1.1% Polish as their first language.

There were 20,038 households, out of which 29.40% had children under the age of 18 living with them, 49.00% were married couples living together, 11.60% had a female householder with no husband present, and 34.60% were non-families. 29.50% of all households were made up of individuals, and 14.90% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.98.

In the county, the population was spread out, with 24.50% under the age of 18, 7.20% from 18 to 24, 26.30% from 25 to 44, 22.90% from 45 to 64, and 19.20% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 91.40 males. For every 100 females age 18 and over, there were 87.90 males.

The median income for a household in the county was $33,128, and the median income for a family was $40,688. Males had a median income of $31,818 versus $23,359 for females. The per capita income for the county was $17,005. About 9.00% of families and 13.7% of the population were below the poverty line, including 17.80% of those under age 18 and 9.89% of those age 65 or over.

Politics and government
In 2012, voters approved a county charter under New York's municipal home rule law which established an independent county executive to head its executive branch and replace the board of supervisors with a nine-seat county legislature. Elections were held the next year and the county began operating under this charter on January 1, 2014. As of 2024, the legislature has 8 Republicans and 1 Democrat.

 * }

City

 * Amsterdam

Towns

 * Amsterdam
 * Canajoharie
 * Charleston
 * Florida
 * Glen
 * Minden
 * Mohawk
 * Palatine
 * Root
 * St. Johnsville

Villages

 * Ames
 * Canajoharie
 * Fonda (county seat)
 * Fort Plain
 * Fultonville
 * Hagaman
 * Nelliston
 * Palatine Bridge
 * St. Johnsville

Census-designated place

 * Tribes Hill

Hamlets

 * Auriesville
 * Fort Hunter
 * Freysbush
 * Minaville
 * Sprakers
 * Sprout Brook
 * Valley Brook

Notable people

 * Joseph Brant, Mohawk Indian, was a Mohawk military and political leader, based in present-day New York, who was closely associated with Great Britain during and after the American Revolution. He and his family were from Canajoharie, New York.
 * Charles Couch, Wisconsin state legislator, was born in Mohawk in Montgomery County in 1833.
 * Bud Fowler, African American baseball player. He was the first African American professional baseball player. He was born in Fort Plain, New York.
 * Sheldon Jackson, Presbyterian missionary, was born in Minaville in Montgomery County in 1834.
 * Cady Staley, 1st President of Case School of Applied Science (now Case Western Reserve University), was born in Minaville in Montgomery County in 1840.
 * Kirk Douglas, actor.
 * George A. Mitchell, founder of Cadillac, Michigan
 * David Pietrusza, author.

title: Montgomery County, New York


text:
Bulb

In botany, a bulb is a short underground stem with fleshy leaves or leaf bases that function as food storage organs during dormancy. In gardening, plants with other kinds of storage organ are also called ornamental bulbous plants or just bulbs.

Description
The bulb's leaf bases, also known as scales, generally do not support leaves, but contain food reserves to enable the plant to survive adverse conditions. At the center of the bulb is a vegetative growing point or an unexpanded flowering shoot. The base is formed by a reduced stem, and plant growth occurs from this basal plate. Roots emerge from the underside of the base, and new stems and leaves from the upper side. Tunicate bulbs have dry, membranous outer scales that protect the continuous lamina of fleshy scales. Species in the genera Allium, Hippeastrum, Narcissus, and Tulipa all have tunicate bulbs. Non-tunicate bulbs, such as Lilium and Fritillaria species, lack the protective tunic and have looser scales.

Bulbous plant species cycle through vegetative and reproductive growth stages; the bulb grows to flowering size during the vegetative stage and the plant flowers during the reproductive stage. Certain environmental conditions are needed to trigger the transition from one stage to the next, such as the shift from a cold winter to spring. Once the flowering period is over, the plant enters a foliage period of about six weeks during which time the plant absorbs nutrients from the soil and energy from the sun for setting flowers for the next year. Bulbs dug up before the foliage period is completed will not bloom the following year but then should flower normally in subsequent years.

Plants that form bulbs
Plants that form underground storage organs, including bulbs as well as tubers and corms, are called geophytes. Some epiphytic orchids (family Orchidaceae) form above-ground storage organs called pseudobulbs, that superficially resemble bulbs.

Nearly all plants that form true bulbs are monocotyledons, and include: The only eudicot plants that produce true bulbs are just a few species in the genus oxalis, such as Oxalis latifolia.
 * Amaryllis, Crinum, Hippeastrum, Narcissus, and several other members of the amaryllis family Amaryllidaceae. This includes onion, garlic, and other alliums, members of the Amaryllid subfamily Allioideae.
 * Lily, tulip, and many other members of the lily family Liliaceae.
 * Two groups of Iris species, family Iridaceae: subgenus Xiphium (the "Dutch" irises) and subgenus Hermodactyloides (the miniature "rock garden" irises).

Bulbil
A bulbil is a small bulb, and may also be called a bulblet, bulbet, or bulbel.

Small bulbs can develop or propagate a large bulb. If one or several moderate-sized bulbs form to replace the original bulb, they are called renewal bulbs. Increase bulbs are small bulbs that develop either on each of the leaves inside a bulb, or else on the end of small underground stems connected to the original bulb.

Some lilies, such as the tiger lily Lilium lancifolium, form small bulbs, called bulbils, in their leaf axils. Several members of the onion family, Alliaceae, including Allium sativum (garlic), form bulbils in their flower heads, sometimes as the flowers fade, or even instead of the flowers (which is a form of apomixis). The so-called tree onion (Allium × proliferum) forms small onions which are large enough for pickling.

Some ferns, such as the hen-and-chicken fern, produce new plants at the tips of the fronds' pinnae that are sometimes referred to as bulbils.

title: Bulb


text:
User:Jzcool/ToDoList

Jzcool's stuff I need to do:

As you may be able to see, I'm aiming at fully completing the Video game console page.

Nintendo 64DD Doctor V64 (not completed)

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title: User:Jzcool/ToDoList


text:
Iaijutsu

Iaijutsu (居合術) is a combative quick-draw sword technique. This art of drawing the Japanese sword, katana, is one of the Japanese koryū martial art disciplines in the education of the classical warrior (bushi).

Purpose
Iaijutsu is a combative sword-drawing art but not necessarily an aggressive art because iaijutsu is also a counterattack-oriented art. Iaijutsu technique may be used aggressively to wage a premeditated surprise attack against an unsuspecting enemy. The formulation of iaijutsu as a component system of classical bujutsu was made less for the dynamic situations of the battlefield than for the relatively static applications of the warrior's daily life off the field of battle.

Etymology
Battojutsu is an older name for Iaijutsu. Historically, it is unclear when the term "iaijutsu" originated. It is also unclear when techniques to draw katana from the scabbard were first practiced as a dedicated form of exercise. The Japanese sword has existed since the Nara period (710–794), where techniques to draw the sword have been practiced under other names than 'iaijutsu'. The term 'iaijutsu' was first verified in connection with Iizasa Chōisai Ienao (c. 1387 – c. 1488), founder of the school Tenshin Shōden Katori Shintō-ryū.

History
Archaeological excavations dated the oldest sword in Japan from at least as early as second century B.C.  The Kojiki (Record of Ancient Matters) and the Nihon Shoki (History of Japan), ancient texts on early Japanese history and myth that were compiled in the eighth century A.D., describe iron swords and swordsmanship that pre-date recorded history, attributed to the mythological age of the gods (kami).

The development of Japanese swordsmanship as a component system of classical bujutsu created by and for professional warriors (bushi), begins only with the invention and widespread use of the Japanese sword, the curved, single-cutting-edged long sword. In its curved form, the sword is known to the Japanese as tachi in the eighth century. It evolved from and gained ascendancy over its straight-bladed prototype because years of battlefield experience proved that the curved form of sword was better suited to the needs of the bushi than the straight-bladed kind. Around the curved long sword the bushi built a mystique of fantastic dimensions, one that still influences Japanese culture today. The nature of the bushi's combative deployment, mounted as he was on horseback, required the classical warrior to reach out for his enemy, who might either be similarly mounted or otherwise ground-deployed.

During the Kamakura period (1185–1333) the Japanese sword smiths achieved the highest level of technical excellence and because the war between two influential families, the Minamoto and the Taira, made it possible to test and evaluate swords under the severest of conditions. By the end of the Kamakura period the tachi was superseded by a shorter weapon in a new form, called katana.

It was with the general widespread use of the curved sword mounted and worn as a katana that classical Japanese swordsmanship for infantry applications really begins. The earliest reliable documentation to prove that the bushi practiced swordsmanship in a systematic manner is dated in the 15th century. In this connection it is believed that kenjutsu, which deals with the art of swordsmanship as it is performed with an unsheathed sword, is the preceding form of iaijutsu.

Iaijutsu is extant today, but there also exists a modern form for drawing the Japanese sword called iaido, a term which first appeared in 1932.

Postures
According to Donn F. Draeger, iaijutsu is a combative art and, therefore, the warrior considered only two starting positions in the execution of a sword-drawing technique:
 * The first technique is the low crouching posture named iai-goshi.
 * The second is the standing posture named tachi-ai.

Two other postures are not used in iaijutsu because they possessed technical issues that would place their users at a disadvantage: It would be difficult for the swordsman using either of these two postures to go quickly into action in an emergency.
 * The seated posture, tate-hiza, does not permit all-around mobility.
 * Seiza, the formal kneeling-sitting posture, is a "dead" posture which is regarded by the warrior as less combatively efficient.

Koryū Schools
Some of the Ryū that still exist and include iaijutsu in their curriculum are listed below - these schools are koryū, or arts developed before the Meiji era:

 * Musō Jikiden Eishin-ryū—Traces back to the Hayashizaki-ryū Iai of Hayashizaki Jinsuke (Late 15th century).
 * Suiō-ryū Iai Kenpō—Founded around 1600 by Mima Yoichizaemon Kagenobu.
 * Shin Shin Sekiguchi-ryū—founded by Sekiguchi Yorokuuemon Ujimune.
 * Mugai-ryū—Founded in 1693 by Tsuji Gettan Sukemochi, who had previously learned Yamaguchi-ryū kenjutsu. The iai-jutsu is transmitted ryuha, it is from Jikyo-ryu ii founded Taga Gon-nai.
 * Jigen-ryū—Founded by Tōgō Hizen-no-kami Shigetada, its lineage traces back to the Shintō-ryū of Iizasa Chōisai Ienao.
 * Tenshin Shōden Katori Shintō-ryū—Founded in the 15th century by Iizasa Chōisai Ienao.
 * Tamiya Shinken-ryu—A branch of the Tamiya-ryu in Saijo-han (17th century), arranged by Tsumaki Seirin in the 20th century.
 * Yagyū Seigo-ryu—Founded by Nagaoka Torei Fusashige in the 17th century.
 * Yagyū Shinkage-ryū—From the Shinkage-ryū of Yagyū Muneyoshi, who studied under Kamiizumi Nobutsuna in the 16th century.
 * Yoshin-ryū—from the Yoshin-ryū founded by Akiyama Shirobei Yoshitoki in the mid 17th century.
 * Shin-Tamiya-ryuーFounded by Wada Heisuke in 17th century.
 * Hoki-ryuーA branch of the Tamiya-ryu, founded by Katayama Hoki-no-kami Hisayasu in 17th century. Hoshino-ha Hoki-ryu in Kumamoto spread to other areas.
 * Hayashizaki-Shin-Muso-ryuーFounded by Hayashizaki Jinsuke Shigenobu in 16th century.
 * Ishiguro-ryuーA part of the Ishiguro-ryu Jujutsu, Founded by Ishiguro Ansai in 19th century.
 * Kageyama-ryuーFounded by Kageyama Kiyoshige in 16th century.
 * Shingyotoh-ryuーFounded by Iba-Hideaki in 17th century.
 * Ittō-ryūーancestor school of several Japanese Koryū kenjutsu styles; was developed by Ittōsai Kagehisa

title: Iaijutsu


text:
User:Jzcool/ThingsIWant

Jzcool's stuff he wants:

If you're ever in the giving spirit, please give me these things:

1. Laptop 2. Windows XP Professional Edition 3. The Fast and Furious (DVD) 4. Pirates of Silicon Valley (movie) 5. NWA - Straight Outta Compton (CD) 6. Final Fantas X (PS2 game) 7. Metal Gear Solid 2: Sons of Liberty (PS2 game) 8. Kristin Backes (heh heh. I'm j/p, Kristin)

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title: User:Jzcool/ThingsIWant