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香蕉是世界上古老的栽培植物之一,原产于东南亚,现在已在环绕地球南北纬30度的热带和亚热带的广阔地区安家落户。1990年,全世界香蕉产量达4585.5万吨,位居柑桔、葡萄之后的世界第三大水果,而国际贸易量则居各种水果之首,堪称最受人们喜爱的热带亚热带水果之一。科学家证明,现今人类栽培的香蕉有两个野生的祖先,一个叫阿加蕉,一个叫伦阿蕉。香蕉在漫长的进化过程中,主要依靠地下茎进行无性繁殖传宗接代,这种无性繁殖唯一可利用的变异,就是体细胞的突变,而每百万株香蕉中体细
Banana, one of the oldest cultivated plants in the world, is native to Southeast Asia and has now settled in a vast area of tropical and subtropical land about 30 degrees north and south of the Earth. In 1990, the world’s bananas output reached 45,855,000 tons, ranking the third largest fruit in the world after citrus and grape, while the international trade ranks first in all kinds of fruits, making it one of the most popular tropical and subtropical fruits . Scientists have shown that there are two wild ancestors of human-cultivated bananas today, one called Ajia banana and one called Lunamu banana. Banana in the long evolutionary process, mainly rely on underground stems asexual reproduction pass on, the only available mutation of this asexual reproduction is the somatic mutation, and per million bananas in thin