Cherry
The cherry is the fruit of many plants of the genus Prunus, and is a fleshy drupe (stone fruit). The cherry fruits of commerce are usually obtained from a limited number of species, including especially cultivars of the wild cherry, Prunus avium. The name 'cherry' also refers to the cherry tree, and is sometimes applied to almonds and visually similar flowering trees in the genus Prunus, as in "ornamental cherry", "cherry blossom", etc. Botany Prunus padus, bird cherry Many cherries are members of the subgenus Cerasus, which is distinguished by having the flowers in small corymbs of several together (not singly, nor in racemes), and by having smooth fruit with only a weak groove or none along one side. The subgenus is native to the temperate regions of the Northern Hemisphere, with two species in America, three in Europe, and the remainder in Asia. Other cherry fruits are members of subgenus Padus. Cherry trees with low exposure to light tend to have a bigger leaf size so they can intercept all light possible. Cherry trees with high exposure to light tend to have thicker leaves to concentrate light and have a higher photosynthetic capacity. [1] Most eating cherries are derived from either Prunus avium, the wild cherry (sometimes called the sweet cherry), or from Prunus cerasus, the sour cherry. [edit]History [edit]Etymology and antiquity The native range of the wild cherry extends through most of Europe, western Asia and parts of northern Africa, and the fruit has been consumed throughout its range since prehistoric times. A cultivated cherry is recorded as having been brought to Rome by Lucius Licinius Lucullus from northeastern Anatolia, modern day Turkey, also known as the Pontus region, in 72 BC.[2] A form of cherry was introduced into England at Teynham, near Sittingbourne in Kent by order of Henry VIII, who had tasted them in Flanders.[3][4][5] The English word cherry, French cerise and Spanish cereza all come from the classical Greek (?) through the Latin cerasum, thus the ancient Roman place name Cerasus, today a city in northern Turkey Giresu from which the cherry was first exported to Europe.[6] [edit]Wildlife value Cherry trees also provide food for the caterpillars of several Lepidoptera. [edit]Cultivation The cultivated forms are of the species wild cherry (P. avium) to which most cherry cultivars belong, and the sour cherry (P. cerasus), which is used mainly for cooking. Both species originate in Europe and western Asia; they do not cross-pollinate. Some other species, although having edible fruit, are not grown extensively for consumption, except in northern regions where the two main species will not grow. Irrigation, spraying, labor, and their propensity to damage from rain and hail make cherries relatively expensive. Nonetheless, demand is high for the fruit. In commercial production, cherries are harvested by using a mechanized 'shaker'.[7] Hand picking is also widely used to harvest the fruit to avoid damage to both fruit and trees. [edit]Growing season Cherries have a very short growing season and can grow in most temperate latitudes. The peak season for cherries is in the summer. In Australia, they are usually at their peak in late December, in southern Europe in June, in North America in June, in south British Columbia (Canada) in July to mid-August, and in the UK in mid-July. In many parts of North America, they are among the first tree fruits to ripen. 'Kordia' is an early variety which ripens during the beginning of December, 'Lapins peak' ripens near the end of December, and 'Sweethearts' finish slightly later in the Southern Hemisphere. Like most temperate-latitude trees, cherry seeds require exposure to cold to germinate (a mechanism the tree evolved to prevent germination during the autumn, which would then result in the seedling being killed by winter temperatures). The pits are planted in the autumn (after first being chilled) and seedlings emerge in the spring. A cherry tree will take three to four years to produce its first crop of fruit, and seven years to attain full maturity. Because of the cold-weather requirement, none of the Prunus family can grow in tropical climates.