【摘要】 940 3是国内新合成的一种哒嗪类化合物 ,经初步研究证明 ,940 3具有诱导小麦雄性不育的作用。试验以 GENESIS化学杂交剂为对照 ,对 940 3诱导小麦雄性不育的作用进行了研究 ,结果表明 :940 3对试验的两个品种西农 641 9与 BAU 95在其花药发育的药隔期 ,用剂量 0 .75kg/hm2 进行一次叶面喷施 ,诱导雄性不育率可达到 96%以上。人工饱和授粉证明940 3对雌蕊的育性没有影响 ,平均人工饱和授粉结实率为 88.6% ,与 GENESIS相比 ,940 3的杀雄效果较不彻底且具有一定的药害。更多还原

【Abstract】 is a nwe pyridazine compound.In this paper 9403 had been evaluated as a chemical hybridizing agent(CHA) for two wheat cultivars BAU95 and Xinong6419.The results showed that:In the rate of 0.75 kg/hm 2,with application active window at formation of anther chamber,9403 could induce male sterility rate above 96.0% for two cultivars.The pistil and crossfertility in the handed pollination were normal.The average handed pollination rates were 86.8% and 98.0% for BAU95 and Xinong6419 respectively.Compared with GENESIS and untreated controls,There were some side effects showed on plant development and plant growth.更多还原