| 早花时矮秆晚粳不育系春江12A的选育与利用 |
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| 引用本文： | 吴明国,林建荣,阮关海,李春寿. 早花时矮秆晚粳不育系春江12A的选育与利用[J]. 杂交水稻, 2005, 20(5): 12-14 |
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| 作者姓名： | 吴明国 林建荣 阮关海 李春寿 |
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| 作者单位： | 1. 中国水稻研究所,浙江,杭州,310006
2. 浙江省农业科学院,浙江,杭州,310021 |
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| 基金项目： | 浙江省科技攻关项目，浙江省科技攻关项目 |
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| 摘 要： | 春江12A是中国水稻研究所以宁67A为母本,用春江12作父本杂交,经连续多代回交转育而成的滇Ⅰ型早花时矮秆晚粳不育系,2004年9月通过浙江省科技厅鉴定.春江12A育性稳定,不育度和不育株率均为100%,花时早,异交结实率高,矮秆抗倒,穗型大,米质优良,配合力好.利用春江12A配制的粳粳交和粳籼交杂交稻组合表现出大穗、抗倒、杂种优势强、产量潜力大、米质较优等特点.
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| 关 键 词： | 杂交水稻 粳稻不育系 春江12A 早花时 选育 |
| 文章编号： | 1005-3956(2005)05-0012-03 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2004-12-20 |
Breeding and Utilization of Late Japonica CMS Line Chunjiang 12A with Dwarfness and Early Flowering Time |
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| WU Ming-guo,LIN Jian-rong,RUAN Guan-hai,LI Chun-shou. Breeding and Utilization of Late Japonica CMS Line Chunjiang 12A with Dwarfness and Early Flowering Time[J]. Hybrid Rice, 2005, 20(5): 12-14 |
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| Authors: | WU Ming-guo LIN Jian-rong RUAN Guan-hai LI Chun-shou |
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| Abstract: | Chunjiang 12A,developed through crossing Chunjiang 12 to Ning 67A and successively backcrossing with Chunjiang 12 as recurrent parent,is a new late japonica Dian I type CMS line with dwarfness and early flowering time.It was registered in Zhejiang Province in 2004.Its pollen sterility and percentage of sterile plants were both 100%.It had the characteristics of early flowering,high outcrossing rate,good plant type,large panicle,good grain quality and good combining ability.Its F_1 hybrids,especially japonica-indica hybrids,showed large panicle,strong lodging resistance,high yielding potential and good grain quality in preliminary field trials. |
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| Keywords: | hybrid rice japonica CMS line Chunjiang 12A early flowering breeding |
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