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采用 2个品种、2个时期、2个剂量的 3因素随机区组试验 ,对新型小麦化学杂交剂 94 0 3的杀雄效果及其对小麦生长发育的影响进行研究。结果表明 :1小麦雌雄蕊分化期喷施 0 .75kg/ hm2 94 0 3的不育率最高 ,为 89.1 1 % ,其自然授粉结实率达 77.2 8% ;2 94 0 3的杀雄效果取决于品种和时期 ,且二者存在显著的互作效应 ;3药隔期喷施 94 0 3比雌雄蕊分化期喷施的千粒重降低 1 .9～ 8.4 g;0 .75kg/ hm2 处理比0 .50 kg/ hm2的株高降低 3.7cm,差异显著 ;4不同品种敏感性不同 ,BAU95对 94 0 3反应敏感 ,不育率高 ;SN1 861则相反
The effects of the new wheat chemical hybrid 9430 on male sterility and its effect on the growth and development of wheat were studied by three-factor randomized block test with 2 varieties, 2 periods and 2 doses. The results showed that: (1) The sterility rate of pollination at 075 kg / hm 2 94 0 3 was 89.1 1% at pollen-stamen stage of wheat, and its natural pollination rate was 77.2 8%. The killing effect at 2 94 0 3 was determined by Variety and period, and there is a significant interaction between the two; 3 spraying at intervals of 94 0 3 than the pistil and the 1000-grain weight spray spraying reduced 1. 9 ~ 8.4 g; 0.75kg / hm2 treatment than 0.50 kg / hm2 decreased 3.7cm, significant difference; 4 different varieties of different sensitivity, BAU95 sensitive to 94 0 3, high sterility; SN1 861 is the opposite