| 从T461的育成探讨广谱广亲和系的选育 |
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| 引用本文： | 朱旭东,朱庆森,陈红旗,闵绍楷.从T461的育成探讨广谱广亲和系的选育[J].中国农学通报,2004,20(1):40-40. |
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| 作者姓名： | 朱旭东 朱庆森 陈红旗 闵绍楷 |
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| 作者单位： | 1. 水稻生物学农业部重点实验室,中国水稻研究所,杭州,310006
2. 扬州大学农学院,扬州,225009 |
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| 基金项目： | 国家863项目和浙江省8812项目的资助课题. |
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| 摘 要： | T461是以籼粳中间型品种轮回422为广亲和、野败恢复基因供体，与意大利粳稻Cripto杂交选育成的具有良好一般配合力、广谱广亲和的偏粳型恢复系。T461能恢野败、矮败、印尼水田谷、滇型和BT型等核-质互作型籼、粳三系不育系，与籼型和粳型测验种杂交的结实率非常接近，小穗育性平均在90%以上，表现亲和力强、亲和谱广。在T461的改良过程中，选用多个不同的三系不育系在分离世代检测恢复性和配合力的同时，还能起到鉴定广亲和性的作用，达到获得广谱广亲和的目的。
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| 关 键 词： | 水稻 广亲和 恢复系 |
Discussion on Breeding of Broad-spectrum Compatibility Restoring-line Based on Development of T461 |
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| Zhu Xudong,Zhu Qingsen,Chen Hongqi,Min Shaokai.Discussion on Breeding of Broad-spectrum Compatibility Restoring-line Based on Development of T461[J].Chinese Agricultural Science Bulletin,2004,20(1):40-40. |
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| Authors: | Zhu Xudong Zhu Qingsen Chen Hongqi Min Shaokai |
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| Institution: | (1Key Lab for Rice Biology of Ministry of Agriculture of China, CNRRI, Hanzhou 310006,
2Agricultural College, Yangzhou University, Yangzhou 225009, P. R. China) |
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| Abstract: | T461, developed from Lunhui 422 crossed with Italian japonica variety Cripto, is a japonica-like restoring-line to CMS rice, with broad-spectrum compatibility to indica & japonica and good general combining ability. T461 can restore different CMS type including WA, DA, IA, BT and Dian type. The spikelet fertility of test-crossers was above 90% averagely for T461, combined with indica and japonica testers, to be strong compatibility with broad-spetrum. In development of T461, the segregating progeny was test-crossed by different CMS lines for restoring and combining ability, at the same time for broad-spectrum compatibility. |
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| Keywords: | Oryza sativa L Compatibility Restoring line |
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