杂交水稻制种,双亲之间就开花习性而言存在着明显的差异,所形成的父母本花时不遇,成为提高制种产量的限制因子。近年来,采用对母本赶露水,对父本喷冷水等物理方法,或用化学处理的方法(如喷施三十烷醇、硼砂、维生素C等)来调节花时.这些方法有的效果不稳定,有的效果不明显,生产上推广缓慢。1985年荆州地区种子公司组织购进广西平乐化工厂生产的新型植物激 There was a clear difference in terms of flowering habits between parents in hybrid rice seed production. The resulting parents did not spend the time and became the limiting factor to increase seed production. In recent years, the use of dewdrop on the female parent, the father of cold water and other physical methods, or by chemical treatment methods (such as spraying triacontanol, borax, vitamin C, etc.) to adjust the time. Unstable, some effects are not obvious, slow production promotion. 1985 Jingzhou seed companies to buy Guangxi Pingle chemical plant production of new plant irritation