Musa species are native to tropical Indomalaya and Australia, and are likely to have been first domesticated in Papua New Guinea.[4][5] They are grown in 135 countries,[6] primarily for their fruit, and to a lesser extent to make fiber, banana wine, and banana beer, and as ornamental plants. The world's largest producers of bananas in 2017 were India and China, which together accounted for approximately 38% of total production.[7]
Worldwide, there is no sharp distinction between "bananas" and "plantains". Especially in the Americas and Europe, "banana" usually refers to soft, sweet, dessert bananas, particularly those of the Cavendish group, which are the main exports from banana-growing countries. By contrast, Musa cultivars with firmer, starchier fruit are called "plantains". In other regions, such as Southeast Asia, many more kinds of banana are grown and eaten, so the binary distinction is not as useful and is not made in local languages.
hindi to english Banana
The term "banana" is also used as the common name for the plants that produce the fruit.[3] This can extend to other members of the genus Musa, such as the scarlet banana (Musa coccinea), the pink banana (Musa velutina), and the Fe'i bananas. It can also refer to members of the genus Ensete, such as the snow banana (Ensete glaucum) and the economically important false banana (Ensete ventricosum). Both genera are in the banana family, Musaceae.
The banana plant is the largest herbaceous flowering plant.[8] All the above-ground parts of a banana plant grow from a structure usually called a "corm".[9] Plants are normally tall and fairly sturdy with a treelike appearance, but what appears to be a trunk is actually a "false stem" or pseudostem. Bananas grow in a wide variety of soils, as long as the soil is at least 60 centimetres (2.0 ft) deep, has good drainage and is not compacted.[10] Banana plants are among the fastest growing of all plants, with daily surface growth rates recorded of 1.4 square metres (15 sq ft) to 1.6 square metres (17 sq ft).[11][12]
The leaves of banana plants are composed of a stalk (petiole) and a blade (lamina). The base of the petiole widens to form a sheath; the tightly packed sheaths make up the pseudostem, which is all that supports the plant. The edges of the sheath meet when it is first produced, making it tubular. As new growth occurs in the centre of the pseudostem the edges are forced apart.[13] Cultivated banana plants vary in height depending on the variety and growing conditions. Most are around 5 m (16 ft) tall, with a range from 'Dwarf Cavendish' plants at around 3 m (10 ft) to 'Gros Michel' at 7 m (23 ft) or more.[14][15] Leaves are spirally arranged and may grow 2.7 metres (8.9 ft) long and 60 cm (2.0 ft) wide.[1] They are easily torn by the wind, resulting in the familiar frond look.[16] When a banana plant is mature, the corm stops producing new leaves and begins to form a flower spike or inflorescence. A stem develops which grows up inside the pseudostem, carrying the immature inflorescence until eventually it emerges at the top.[17] Each pseudostem normally produces a single inflorescence, also known as the "banana heart". (More are sometimes produced; an exceptional plant in the Philippines produced five.[18]) After fruiting, the pseudostem dies, but offshoots will normally have developed from the base, so that the plant as a whole is perennial. In the plantation system of cultivation, only one of the offshoots will be allowed to develop in order to maintain spacing.[19] The inflorescence contains many bracts (sometimes incorrectly referred to as petals) between rows of flowers. The female flowers (which can develop into fruit) appear in rows further up the stem (closer to the leaves) from the rows of male flowers. The ovary is inferior, meaning that the tiny petals and other flower parts appear at the tip of the ovary.[20]
The end of the fruit opposite the stem contains a small tip distinct in texture, and often darker in color. Often misunderstood to be some type of seed or excretory vein, it is actually just the remnants from whence the banana fruit was a banana flower.[24]
As with all living things on earth, potassium-containing bananas emit radioactivity at low levels occurring naturally from potassium-40 (40K or K-40),[25] which is one of several isotopes of potassium.[26][27] The banana equivalent dose of radiation was developed in 1995 as a simple teaching-tool to educate the public about the natural, small amount of K-40 radiation occurring in every human and in common foods.[28][29]
The K-40 in a banana emits about 15 becquerels or 0.1 microsieverts (units of radioactivity exposure),[30] an amount that does not add to the total body radiation dose when a banana is consumed.[25][29] By comparison, the normal radiation exposure of an average person over one day is 10 microsieverts, a commercial flight across the United States exposes a person to 40 microsieverts, and the total yearly radiation exposure from the K-40 sources in a person's body is about 390 microsieverts.[30][better source needed]
The classification of cultivated bananas has long been a problematic issue for taxonomists. Linnaeus originally placed bananas into two species based only on their uses as food: Musa sapientum for dessert bananas and Musa paradisiaca for plantains. More species names were added, but this approach proved to be inadequate for the number of cultivars in the primary center of diversity of the genus, Southeast Asia. Many of these cultivars were given names that were later discovered to be synonyms.[36]
The accepted scientific names for most groups of cultivated bananas are Musa acuminata Colla and Musa balbisiana Colla for the ancestral species, and Musa paradisiaca L. for the hybrid M. acuminata M. balbisiana.[39]
Generally, modern classifications of banana cultivars follow Simmonds and Shepherd's system. Cultivars are placed in groups based on the number of chromosomes they have and which species they are derived from. Thus the Latundan banana is placed in the AAB Group, showing that it is a triploid derived from both M. acuminata (A) and M. balbisiana (B). For a list of the cultivars classified under this system, see "List of banana cultivars".
In regions such as North America and Europe, Musa fruits offered for sale can be divided into "bananas" and "plantains" (cooking banana), based on their intended use as food. Thus the banana producer and distributor Chiquita produces publicity material for the American market which says that "a plantain is not a banana". The stated differences are that plantains are more starchy and less sweet; they are eaten cooked rather than raw; they have thicker skin, which may be green, yellow or black; and they can be used at any stage of ripeness.[41] Linnaeus made the same distinction between plantains and bananas when first naming two "species" of Musa.[42] Members of the "plantain subgroup" of banana cultivars, most important as food in West Africa and Latin America, correspond to the Chiquita description, having long pointed fruit. They are described by Ploetz et al. as "true" plantains, distinct from other cooking bananas.[43] The cooking bananas of East Africa belong to a different group, the East African Highland bananas,[15] so would not qualify as "true" plantains on this definition.
An alternative approach divides bananas into dessert bananas and cooking bananas, with plantains being one of the subgroups of cooking bananas.[44] Triploid cultivars derived solely from M. acuminata are examples of "dessert bananas", whereas triploid cultivars derived from the hybrid between M. acuminata and M. balbisiana (in particular the plantain subgroup of the AAB Group) are "plantains".[45][46] Small farmers in Colombia grow a much wider range of cultivars than large commercial plantations. A study of these cultivars showed that they could be placed into at least three groups based on their characteristics: dessert bananas, non-plantain cooking bananas, and plantains, although there were overlaps between dessert and cooking bananas.[47]
In the Spanish market, the distinction is among plátano, applied to the Cavendish cultivars produced in the Spanish Canary Islands under the protected geographical indication plátano de Canarias, banana, applied to dessert imports from Africa and the Americas, and plátano macho (literally, "male banana"), applied to imports that are to be cooked.[50]
In summary, in commerce in Europe and the Americas (although not in small-scale cultivation), it is possible to distinguish between "bananas", which are eaten raw, and "plantains", which are cooked. In other regions of the world, particularly India, Southeast Asia and the islands of the Pacific, there are many more kinds of banana and the two-fold distinction is not useful and not made in local languages. Plantains are one of many kinds of cooking bananas, which are not always distinct from dessert bananas.
These ancient introductions resulted in the banana subgroup now known as the "true" plantains, which include the East African Highland bananas and the Pacific plantains (the Iholena and Maoli-Popo'ulu subgroups). East African Highland bananas originated from banana populations introduced to Madagascar probably from the region between Java, Borneo, and New Guinea; while Pacific plantains were introduced to the Pacific Islands from either eastern New Guinea or the Bismarck Archipelago.[52][53]
Another wave of introductions later spread bananas to other parts of tropical Asia, particularly Indochina and the Indian subcontinent.[52][53] However, there is evidence that bananas were known to the Indus Valley civilisation from phytoliths recovered from the Kot Diji archaeological site in Pakistan (although they are absent in other contemporary sites in South Asia). This may be a possible indication of very early dispersal of bananas by Austronesian traders by sea from as early as 2000 BCE. But this is still putative, as they may have come from local wild Musa species used for fiber or as ornamentals, not food.[54] 2ff7e9595c
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