论文部分内容阅读
用Ｋ型小麦雄性不育系Ｋ１４９Ａ，保持系１４９（Ｂ）和３个恢复材料Ｌ７８３、太１０６和ＰＨ８５４（Ｒ）及其杂交后代群体Ｆ１（Ａ／Ｒ），Ｆ２，Ｂ２（Ａ／Ｆ１），Ｂ２′（Ａ∥Ｂ／Ｒ）作为试验材料，对育性指标进行了比较，以恢复性遗传研究的最佳指标———套袋自交结实率为育性指标，对Ｋ型小麦雄性不育系的育性恢复的遗传特点进行了初步分析，结果表明Ｋ型小麦雄性不育系是配子体不育，三个恢复材料的育性恢复受一对显性基因控制，Ｌ７８３的恢复力强于太１０６和ＰＨ８５４。
A / R, F2 and B2 (A / R) lines of K type wheat male sterile line K149A, maintainer line 149 (B) and three restorer lines L783, F1) and B2 ’(A // B / R) were used as test materials to compare the fertility index, and the best index of restoring genetic research --- bagging selfing seed setting rate was fertility index. The genetic characteristics of the male sterility restorer in wheat were analyzed preliminarily. The results showed that male sterility of K type wheat was the male sterility of gametophyte. Fertility restoration of three restorer materials was controlled by a dominant gene. The recovery of L783 Power is stronger than too 106 and PH85 4.