| 水稻恢复系选育的轮回选择法及其应用效果研究 |
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| 引用本文： | 佴军,潘学彪,陈宗祥,张亚芳.水稻恢复系选育的轮回选择法及其应用效果研究[J].作物学报,2004,30(12):1199-1203. |
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| 作者姓名： | 佴军 潘学彪 陈宗祥 张亚芳 |
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| 作者单位： | 扬州大学农学院，江苏扬州225009 |
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| 基金项目： | 国家自然科学基金，江苏省农业科技攻关项目，国家高技术研究发展计划(863计划) |
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| 摘 要： | 利用野败型细胞质雄性不育性作为遗传工具，进行水稻恢复系的轮回选择。试验证明：（1）由于构建基础群体时，加入了一定比例具有保持系性质的常规品种，以及在后续世代中，不断将经过后裔测验，证实在主要恢复基因位点上均为杂合型的中选可育株种子返回群体，给不育株授粉，因而保证了每轮次轮回选择群体内不育株比例基本稳
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| 关 键 词： | 水稻 轮回选择 野败型细胞质雄性不育 恢复系 |
| 收稿时间： | 2003-09-11 |
| 修稿时间： | 2003年9月11日 |
Method and Application Effect of Recurrent Selection for Restoring Line Bree-ding of Rice |
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| NAI Jun,PAN Xue Biao ,CHEN Zong Xiang,ZHANG Ya Fang.Method and Application Effect of Recurrent Selection for Restoring Line Bree-ding of Rice[J].Acta Agronomica Sinica,2004,30(12):1199-1203. |
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| Authors: | NAI Jun PAN Xue Biao CHEN Zong Xiang ZHANG Ya Fang |
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| Institution: | Agricultural College, Yangzhou University, Yangzhou 225009, Jiangsu |
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| Abstract: | Cytoplasmic male sterility of wild abortion (cms WA) was used as a genetic tool in rice recurrent selection of restoring lines breeding. The results showed that: (1) The number of sterile plants in the population could be stabilized at ratio of about 25% in every selection cycle, since a certain amount of maintainers was used when basic population was formed and fertile plants selected in following cycles, which were confirmed as hetorozygous in both two fertile restoring loci after progeny test, were come back to the population as pollinator. Therefore, there were abundant of sterile plants for phenotypic selection to establish the recurrent selection population cycle by cycle. (2) After one or two selection cycles, heading date and plant height of most plants had met with breeding objective, and it offered the precondition in later selection for economic and quality character. (3) In this study, the population was continuously improved throughout coming back fertile plants after progeny test to the population as pollinator. At the same time, elites of restoring lines were bred from the recurrent selection population. Restoring P004 and its hybrid 3037 crossed P004 with cms line Yue Feng A, was joined in the on farm demonstration in Jiangsu Province. |
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| Keywords: | Rice Recurrent selection WA cytoplasmic male sterility Restoring line |
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