| 摘要: |
| 1976年确定了高产、半矮秆杂种小麦选育研究的方向。利用 T 质系统,在不育系中引入 Tom Thumb 的 Rht,基因,选育高产、恢复力强的恢复系.采用冬春杂交的配组方式,配制株高80cm 左右,每穗平均粒数45—50粒,千拉重40克以上,每亩穗数30万左右,抗主要病害的半矮秆杂种小麦.八年来已育成一批株高60cm 左右,具有一定抗性,籽粒饱满的显性矮秆不育系,以及恢复力稳定在80%,产量性状较好的恢复系。近两年来对半矮秆杂种小麦的产量及产量性状和抗病性的研究表明,除了亩穗数以外,基本上达到了育种目标的要求. |
| 关键词: 杂种小麦 产量性状 恢复系 育种目标 高产品种 半矮秆 小麦株高 千粒重 恢复力 小麦雄性不育系 |
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| RESEARCH PROGRESS IN HYBRID WHEAT WITH HIGH YIELDING POTENTIAL AND SEMI-DWARF ING STATURE |
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| Abstract: |
| Based on the ecological and eoonomical conditions in Jiangsu province,a pro- gram of breeding hybrid wheat with high yielding potential and semi-dwarfing stature was projected in 1976.T.timopheevii cytoplasm system was used in this program.The variety of Tom Thumb was employed as a source of dwarf gene to decrease plant beight of hybrid wheat.Rht3,a semi-dominent gene,the effect of this gone on reducing plant height is more superior than Norin 10 and Oleson dwarf.A new method calledAdditive-gamitic selectio... |
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