大豆育种一直以系统选育为主 ,随着生物技术发展 ,各种现代育种手段不断应用 ,70年代以后 ,人们采用理化诱变方法 ,培育出了铁丰 18、2 8、诱变 3 0、科丰3 4、诱处 4号等一大批有影响的品种 ,证明诱变育种是大豆育种中的有效手段之一。为此 ,从 1992年以来通过辐射 ,平阳霉素 Soybean breeding has been dominated by systematic breeding. With the development of biotechnology, all kinds of modern breeding methods have been applied continuously. After the 1970s, people used the method of physical and chemical mutagenesis to breed Tiefeng 18,28, mutagenesis 30, Kefeng 3 4, No. 4 and other incentives induced a large number of influential species that mutation breeding is one of the effective means of soybean breeding. To this end, since 1992, pingyangmycin