搜集保存品种资源是育种工作的基础,很多生产上推广的品种是由品种资源中通过各种育种方法培育和选择而成的。1898年美国由农业部成立种子植物引进处,大量收集中国、日本、朝鲜的大豆品种,共计有280份。二十世纪初才从国外引进野生大豆。按巴依巴的统计,到1925年止 Collection and conservation of varieties of resources is the basis for breeding work, a lot of production to promote the variety of varieties of resources by breeding and selection of a variety of ways. In 1898, the United States set up the Import Office of Seed Plants by the Ministry of Agriculture to collect a large amount of soybean varieties from China, Japan and North Korea, for a total of 280. Twentieth Century before the introduction of wild soybean from abroad. By Bayiba statistics until 1925