论文部分内容阅读
华南地区的小麦生育期较短,在抽穗后由于低温阴雨使籽粒灌浆、成熟以至产量受到很大的影响,因此,研究小麦早熟性的遗传规律,对于选育早熟品种以适应稻稻麦三熟制的需要具有重要的意义。小麦生育期的遗传问题在国内外已有报道。蔡旭等从亲本F_1,F_1与F_2,F_2与F_3的相关回归关系分析认为,小麦亲子间平均抽穗期的相关关系密切,可根据亲本生育期的迟早预测杂种后代生育期的早晚。王恒立、庄巧生及
Wheat in southern China had a short growth period, which was greatly affected by grain filling, ripening and grain yield after heading due to low temperature and rainy days. Therefore, the genetic law of wheat precocity was studied. The need for system is of great importance. Genetic problems in the growth of wheat have been reported both at home and abroad. Cai Xuxuan and other parents F_1, F_1 and F_2, F_2 and F_3 regression analysis showed that the average correlation between heading time is closely related to the parents of wheat can be predicted sooner or later, according to the parental growth period of hybrid offspring sooner or later. Wang Hengli, Zhuang Qiao Sheng and