李宏,黄道强,赖穗春,王志东,周德贵,王重荣,周少川.杂种优势预测方法存在问题及一种有效的解决方案[J].广东农业科学,2014,41(19):10-12 |
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杂种优势预测方法存在问题及一种有效的解决方案 |
The issues in heterosis predicting methods and an efficient solution |
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DOI: |
中文关键词: 杂种优势 预测方法 水稻 恢复系 |
英文关键词: heterosis predicting method rice restorer line |
基金项目:比尔和梅琳达·盖茨基金会项目;广东省水稻产业化推进专项(2007020400003) |
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中文摘要: |
预测双亲杂种优势是目前杂种优势预测方法难于应用的主要原因,而预测制恢组合与不育系能否产生杂种优势是可行方案,并已应用于水稻三系恢复系选育,探讨了方案目前成效不大的原因,该方案可极大提高恢复系育种效率,也可称为F1测交与高代测交相结合的恢复系选育方法。 |
英文摘要: |
Predicting heterosis of two parents is the main reason for no breeding application of heterosis predicting methods. However, predicting heterosis between abortion line and cross combination is a practicable method and the method has been applied in developing rice restorer line of 3-line system. The cause of little achievement of the method was analyzed. The method could improve breeding efficiency significantly and was also called restorer line breeding method via F1 testcross and Fn testcross. |
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