当前,我国大豆育种普遍面临着遗传基础狭窄的问题。通过品种资源交换,引进优良的品种和种质资源,用以拓宽品种的遗传基础,对选育高产、抗病虫、优质新品种,使品种的产量潜力有所突破是非常重要的。孙志强(1990)报道,东北地区杂交育成168个大豆品种的基因库中,引入37份种质,这些 At present, soybean breeding in our country generally faces the problem of narrow genetic basis. Through the exchange of variety resources, the introduction of fine varieties and germplasm resources, to broaden the genetic basis of varieties, breeding of high yield, pest resistance, high quality new varieties, breed potential yield breakthrough is very important. Sun Zhiqiang (1990) reported that in the gene pool of 168 soybean cultivars in the Northeast China, 37 germplasms were introduced,