【美国《树木杂志》1965年25卷5期18页报道】无花果树原产于亚洲的西南部。早先该地区各国,在谷物引入、生长之前,无花果是印度、巴基斯坦等国的主要粮食。埃及人曾大量地栽培这个树木作为食赖,因之无花果有“生命之树”之称。夏季炎热、冬季寒冷期较短的干旱亚热带是无花果的适生和生长繁茂地带。2—3年生的无花果即可结果,一般从7月下旬直到霜冻前,几乎天天可以摘采果实,树木结果 [American Journal of Trees, 1965, Volume 25, Issue 5, Page 18] The fig tree is native to the southwest of Asia. Previous countries in the region, before the introduction of grain, figs are the main foodstuffs in India, Pakistan and other countries. The Egyptians have cultivated this tree as food for a great deal, because figs have the title of “tree of life.” Arid subtropics, which are hot in summer and have a short winter cold, are areas where the figs live and grow. 2 - 3-year-old figs can be the result, usually from late July until frost, can pick the fruit almost every day, the tree results