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四棱豆是一种营养非常丰富的蔬菜,也是近十年来世界各国对之极为关注的高蛋白粮食资源,但其原产热带雨林地区,目前只有非洲还有四棱豆属的野生种。据国外资料报导,四棱豆只能在热带低纬度地区种植,在偏温带不能开花结荚。但我国北热带和南亚热带地区如广东、广西和云南等省区早已有零星栽培,1982年安徽省合肥北移引种成功,把四棱豆北移到北纬31度25分,突破
Bean is a very nutritious vegetables, but also the world’s nearly 10 years of great concern to the world’s high-protein food resources, but its origin tropical rainforest region, there are only Africa and the genus Polygonum wild species. According to foreign data reports, four-sided beans can only be planted in the tropical low latitudes, can not flowering in the partial temperate pod. However, China’s northern tropical and southern subtropics such as Guangdong, Guangxi and Yunnan provinces have long been sporadic cultivation. In 1982, Hefei, Anhui Province, northward success of the introduction, the North moved to North Pimiento 31 degrees 25 minutes, a breakthrough