1988年选择了春麦×春麦和春麦×冬麦两大类的28个优良杂交组合的 F_1代花药,用1Gyγ射线辐照后进行花培,试图提高诱变效果,增加基因重组及突变频率,使遗传变异来源更为丰富,加速新品种的选育过程。当年因北京地区病虫害严重,尤其是黄矮病普遍发生,因此影响了性器官的发育, In 1988, F_1 ​​anthers of 28 excellent hybrid combinations of spring wheat × spring wheat and spring wheat × winter wheat were selected, which were irradiated with 1Gy γ ray and then were cultured in an attempt to improve the mutagenesis effect and increase the frequency of gene recombination and mutation The source of genetic variation is more abundant, accelerating the breeding process of new varieties. In those days, pests and diseases were serious in Beijing, especially yellow dwarf virus, which affected the development of sexual organs.