为了高效选育优良作物新品种,半个多世纪以来,世界各国采用辐射诱变的方法,效果较好。诱发大豆早熟,抗倒,抗病,耐热,高油,高蛋白的突变类型,国内外均有报导。几年来,我们先后采用r-射线、x-射线,热中子、P~(32)β射线、DES、EMS、激光等理化因素处理了品种、品系、有性杂交早时代(F_1)等材料,入选了龙辐74-2370,74-2119、76-4522等籽粒品质好,荚密,高产突变系。本文着重以龙辐73-8955为例, In order to efficiently breed new varieties of fine crops, more than half a century, the countries in the world using radiation mutagenesis method, the effect is better. Induced soybean precocity, lodging, disease resistance, heat resistance, high oil, high protein mutation types, both at home and abroad have been reported. Over the past few years, we have used materials such as r-ray, x-ray, thermal neutron, P ~ (32) β-ray, DES, EMS, laser and other physical and chemical factors to deal with varieties, , Selected Longfu 74-2370, 74-2119, 76-4522 and other seeds of good quality, pod dense, high yield mutant line. This article focuses on the Long Spoke 73-8955, for example,