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春小麦是我区重要粮食作物之一。在育种工作上,我区各科研单位作了大量工作,取得了不少成绩。为了提供更多的良种,以加速实现“四化”,谨就春麦杂交育种工作中的几个问题谈谈自己的粗浅看法。 F_1代生育期、株高和双亲的关系 1.F_1代的生育期: 国内不少资料证明:F_1代抽穗期介于双亲抽穗期之间而倾早熟亲本。为了探索这一规律是否适合西藏地区,分析了我所1977年春麦杂交的三百多个F_1代组合的生育期。从结果看来,F_1代的生育期界于双亲平均生育期之间且晚熟一些。
Spring wheat is one of the important grain crops in our region. In breeding work, various scientific research units in our district made a lot of work and made a lot of achievements. In order to provide more seeds to speed up the “four modernizations,” I’d like to share my views on several issues in crossbreeding of spring wheat. Relationship between F_1 Generation, Plant Height and Parents 1. Growth Periods of F_1 Generation: There is a lot of data in China to prove that the F_1 generation of heading stage is between the parents’ heading stage and the pro-early-mature parent. In order to explore whether this law is suitable for the Tibet region, the growth period of more than 300 F1 generation combinations in our spring 1977 was analyzed. From the results, F_1 generation had a maturity period between late parents average growth period.