| 早熟三系籼型不育系早A的选育与利用 |
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| 引用本文： | 周行,宋智萍,韦善富,毛昌祥,石瑜敏,韦仕邦,谢丽萍.早熟三系籼型不育系早A的选育与利用[J].杂交水稻,2005,20(4):7-8. |
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| 作者姓名： | 周行 宋智萍 韦善富 毛昌祥 石瑜敏 韦仕邦 谢丽萍 |
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| 作者单位： | 1. 广西农业科学院,对外事务办公室,广西,南宁,530007
2. 广西农业科学院,水稻研究所,广西,南宁,530007 |
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| 摘 要： | 早A是以博B/江B的F5代选系与枝A杂交并连续回交转育而成的早熟籼型不育系,于2004年10月通过广西区技术鉴定.早A不育性稳定,柱头发达,柱头外露率高,异交结实率高,对"九二○"敏感,易于繁殖制种.利用该不育系与恢复系桂11配组,已初步育成杂交组合早优11,表现早熟、高产、优质,在试种中比对照金优463增产8%.
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| 关 键 词： | 杂交水稻 不育系 早A 早熟 选育 |
| 文章编号： | 1005-3956(2005)04-0007-02 |
| 收稿时间： | 2005-03-14 |
| 修稿时间： | 2005年3月14日 |
Breeding and Utilization of Early-maturing Indica CMS Line Zao A |
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| ZHOU Hang,SONG Zhi-ping,WEI Shan-fu,MAO Chang-xiang,SHI Yu-min,WEI Shi-bang,XIE Li-ping.Breeding and Utilization of Early-maturing Indica CMS Line Zao A[J].Hybrid Rice,2005,20(4):7-8. |
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| Authors: | ZHOU Hang SONG Zhi-ping WEI Shan-fu MAO Chang-xiang SHI Yu-min WEI Shi-bang XIE Li-ping |
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| Abstract: | Zao A, developed by crossing the selected F_5 plants of Bo B/Jiang B to Zhi A with successive backcrossing method, is an early-maturing indica CMS line. It was technically certified in Guangxi in October, 2004. It is characterized by stable and complete male sterility, high stigma exsertion, high out-crossing rate, good sensitivity of GA_3 and easiness for hybrid seed production. Its hybrid Zaoyou 11 (Zao A/Gui 11) showed early maturity, high yield and good quality. In the experimental productions in 2004, Zaoyou 11 yielded 8% higher than the check hybrid Jinyou 463. |
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| Keywords: | hybrid rice CMS line Zao A early maturity breeding |
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