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激光能引起小麦穗粒和株型等性状的遗传变异.但各世代性状的变异有所不同,L_2代的变异明显大于L_3代.由抽穗期、株高、穗粒数和千粒重等性状配合的选择指数的遗传进度相对效率高达176%,表明多性状的综合选择比单一性状的选择效果更好.
Laser induced the genetic variation of traits such as spikelet and plant type in wheat, but the variation of traits in different generations was different, and the variation in L_2 generation was significantly greater than that in L_3 generation. The combination of heading date, plant height, grains per spike, The relative efficiency of selection index was as high as 176%, indicating that the comprehensive selection of multiple traits is better than the selection of single traits.