Citrus Wikipedia. Citrus is a genus of floweringtrees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops like oranges, lemons, grapefruit, pomelo and limes. The most recent research indicates an origin in Australia, New Caledonia and New Guinea. Some researchers believe that the origin is in the part of Southeast Asia bordered by Northeast India, Burma Myanmar and the Yunnan province of China,234 and it is in this region that some commercial species such as oranges, mandarins, and lemons originated. Citrus fruit has been cultivated in an ever widening area since ancient times. HistoryeditCitrus plants are native to subtropical and tropical regions of Asia and the Malay Archipelago and they were firstly domesticated in these areas. Some citrus species have been present in the Mediterranean basin for centuries. This group of species has reached great importance in some of the Mediterranean countries and, in the case of orange, mandarin and lemon trees, they found here soil and climatic conditions which allows them to achieve a high level of fruit quality, even better than in the regions where they came from. The native oranges of Florida actually originated with the Spanish. Abstract, introduction to fruit terminology, classification of fruit types, definitions of fruit terms. Citrus is a genus of flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops like oranges, lemons. Trek Fight Jason Isaacs Reveals He Was Blocked By William Shatner On Twitter JLo Flaunts Her AList Legs In A New Ad Campaign Kendall Jenner Bella Hadid Get. Conquistadors. 67 The agronoimists of classical Rome already made many references to the cultivation of citrus fruits within the limits of their empire. King Louis XIV of France housed citrus in orangeries, to protect the tropical fruit to be grown in the 1. France. 8The generic name originated from Latin, where it referred to either the plant now known as Citron C. Depending on the island a fruit can have a different name, for example Mammy Apple St Vincent while other islands called it Mamisiporte which is a soft fruit the. Please note that most treatment modalities listed below are based on conventional medicine. PreventDisease. com does not advocate the use of any pharmaceutical drug. Remove Skin Tags Inner Thigh Skin Tag Removal Cpt Code 2015 Remove Skin Tags Inner Thigh Remove Skin Tags Naturally Apple Cider Vinegar Swiss Collagen Cream. Thuja. It is somehow related to the ancient Greek word for cedar, kdros. This may be due to perceived similarities in the smell of citrus leaves and fruit with that of cedar. Collectively, Citrus fruits and plants are also known by the Romanceloanwordagrumes literally sour fruits. EvolutioneditThe large citrus fruit of today evolved originally from small, edible berries over millions of years. Citrus plants diverged from a common ancestor about 1. Chinese box orange. About 7 million years ago, citrus plants diverged into two groups, the main citrus genus and the ancestors of the Trifoliate orange poncirus, which is closely enough related that it can still be hybridized with all other citrus. These estimates are made using genetic mapping of plant chloroplasts,1. Asia or Australia. The three original species in the citrus genus that have been hybridized into most modern commercial citrus fruit are the mandarin orange, pummelo, and citron. Within the last few thousand years, all common citrus fruits sweet oranges, lemons, grapefruit, limes, and so on were created by crossing those original species. Something similar has occurred with the wide array of chili peppers originating in the hybridization of a few initial species. TaxonomyeditThe taxonomy and systematics of the genus are complex and the precise number of natural species is unclear, as many of the named species are hybrids clonally propagated through seeds by apomixis, and there is genetic evidence that even some wild, true breeding species are of hybrid origin. Most cultivated Citrus seem to be natural or artificial hybrids of four core ancestral species1. Natural and cultivated citrus hybrids include commercially important fruit such as oranges, grapefruit, lemons, limes, and some tangerines. Apart from these four core citrus species, there are Australian limes and the recently discovered Mangshanyegan. Kumquats and Clymenia sp. Trifoliate orange, which is often used as commercial rootstock, is an outgroup and may or may not be categorized as a citrus. Phylogenetic analysis suggests the species of Oxanthera from New Caledonia should be transferred to the genus Citrus. Descriptionedit. Slices of various citrus fruits. These plants are large shrubs or small to moderate sized trees, reaching 51. The flowers are solitary or in small corymbs, each flower 24 cm 0. The fruit is a hesperidium, a specialised berry, globose to elongated, 43. The outermost layer of the pericarp is an exocarp called the flavedo, commonly referred to as the zest. The middle layer of the pericarp is the mesocarp, which in citrus fruits consists of the white, spongy albedo, or pith. The innermost layer of the pericarp is the endocarp. The segments are also called liths, and the space inside each lith is a locule filled with juice vesicles, or pulp. From the endocarp, string like hairs extend into the locules, which provide nourishment to the fruit as it develops. Citrus fruits are notable for their fragrance, partly due to flavonoids and limonoids which in turn are terpenes contained in the rind, and most are juice laden. The juice contains a high quantity of citric acid giving them their characteristic sharp flavour. The genus is commercially important as many species are cultivated for their fruit, which is eaten fresh, pressed for juice, or preserved in marmalades and pickles. They are also good sources of vitamin C and flavonoids. The content of vitamin C in the fruit depends on the species, variety and mode of cultivation. Fruits produced with organic agriculture have been shown to contain more vitamin C than those produced with conventional agriculture in the Algarve, but results depended on the species and cultivar. The flavonoids include various flavanones and flavones. Cultivationedit. Lemons are a citrus fruit native to Asia, but now common worldwide. Citrus trees hybridise very readily depending on the pollen source, plants grown from a Persian limes seeds can produce fruit similar to grapefruit. Thus all commercial citrus cultivation uses trees produced by grafting the desired fruiting cultivars onto rootstocks selected for disease resistance and hardiness. The colour of citrus fruits only develops in climates with a diurnal cool winter. In tropical regions with no winter at all, citrus fruits remain green until maturity, hence the tropical green oranges. The Persian lime in particular is extremely sensitive to cool conditions, thus it is not usually exposed to cool enough conditions to develop a mature colour. If they are left in a cool place over winter, the fruits will change colour to yellow. Downloading Mobile Application And Games here. The terms ripe and mature are usually used synonymously, but they mean different things. A mature fruit is one that has completed its growth phase. Ripening is the changes that occur within the fruit after it is mature to the beginning of decay. These changes usually involve starches converting to sugars, a decrease in acids and a softening and change in the fruits colour. Citrus fruits are non climacteric and respiration slowly declines and the production and release of ethylene is gradual. The fruits do not go through a ripening process in the sense that they become tree ripe. Some fruits, for example cherries, physically mature and then continue to ripen on the tree. Other fruits, like pears, are picked when mature but before they ripen, then continue to ripen off the tree. Citrus fruits pass from immaturity to maturity to over maturity while still on the tree. Once they are separated from the tree, they will not increase in sweetness or continue to ripen. The only way change may happen after being picked is that they will eventually start to decay.