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1971年我县高粱制种田出现了严重的小花败育,致使种子产量下降。秋后我们反复深入田间调查,多次召开老农座谈会,探讨发生小花败育的原因和规律。现试谈如下。高粱拔节后生长点就开始了穗分化,从挑旗到孕穗,进入了性器官形成时期,也叫小花原基分化阶段。这时对温度、光照等外界条件反应敏感,而且要求严格。3197A 和反1
In 1971, there was a serious inflorescence in the sorghum farming system in our county, resulting in a decrease in seed yield. After the autumn, we conducted in-depth field investigations and held forums of farmers for many times to discuss the reasons and laws that led to the abortion. Now talk about the following. After sorghum jointing growth began to spike differentiation, from the flag to the booting, into the sexual organ formation period, also known as the early stages of the differentiation of flower primordia. At this time the temperature, light and other external conditions sensitive, and demanding. 3197A and anti-1