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以 2 0个普通小麦品种为母本 ,采用二裂式裂区设计 ,研究了化学杂交剂 Genesis的诱导雄性不育效果和不同品种间的遗传差异 ,结果表明 :1) Genesis对普通小麦有良好的诱导雄性不育效果 ,供试的 2 0个品种的不育率为 99.2 %～ 10 0 % ,杂交率为 83%～ 10 0 % ,反应度为 2～ 7级 ;2 )不同施用剂量间的杀雄效果存在显著差异 ,以 3kg/hm2 的剂量最优 ,其不育率近 10 0 % ;3)不同喷药时期 (Feeke` s stage8.0和 9.0 )间差异不显著 ,适喷期 7d左右。根据试验结果 ,还讨论了 Genesis的药害问题与适喷期小麦发育的形态指标。
Using 20 common wheat varieties as the female parent, the split-zone design was used to study the effects of chemical hybridization agent Genesis on the induced male sterility and the genetic differences among different varieties. The results showed that: 1) Genesis was good for common wheat The male sterility of 20 tested cultivars was 99.2% ~ 100%, the rate of hybridization was 83% ~ 100% and the reactivity was 2 ~ 7. 2) The results showed that there was a significant difference in the killing effect between male and female plants, which was the best at a dose of 3 kg / hm2, with a sterility rate of nearly 100%. 3) There was no significant difference between different spraying stages (Feeke’s stage 8.0 and 9.0) 7d or so. According to the test results, the problem of phytotoxicity of Genesis and the morphological indexes of wheat development during spraying were also discussed.