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我国现有的水稻“杀雄剂一号、二号”及“73010”虽杀雄效果稳定,但均含有机胂,因此寻求高效无毒(低毒)的水稻杀雄剂很必要。 在广泛筛选新药物的基础上,对ANC、EN进行田间小区试验。试验结果表明,ANC和EN于水稻花粉内容充实期施用,对易杀雄的水稻品种如钢枝占等以0.06～0.08％浓度杀雄,其杀雄率比对照(二号剂)稍低,但药害轻;对较难杀雄的品种如科24等以0.12～0.22％浓度杀雄,其杀雄效果与二号剂相似,除个别之外,多数药害与二号剂差异不大。其中EN对较难杀雄的二白矮、桂朝2号杀雄效果较二号剂好。两种药剂对水稻开花习性及成熟花粉的影响与二号剂一样。应用于杀雄制种获得良好结果。
Although the killing effect of maleicide “No.1 and II” and “73010” of rice in our country are stable, all of them contain organic arsine. Therefore, it is necessary to seek efficient and nontoxic (low toxicity) rice killing agent. On the basis of extensive screening of new drugs, field trials of ANC and EN were carried out. The results showed that when ANC and EN were applied in the pollen stage of rice pollination, the killing rates of ANC and EN were 0.06% ~ 0.08%, which were slightly lower than that of the control (No.2) But less harmful; the more difficult to kill male species such as Section 24 and other 0.12 ~ 0.22% concentration to kill male, and kill the male effect similar to the second agent, except for a few, most of the injury and the second agent is not different . Which EN is more difficult to kill male white short, Gui Chao 2 kill male effect than the second dose is good. The effects of the two agents on rice flowering habits and mature pollen are the same as those of No.2. Applied to the killing male system to obtain good results.