| 玉米Tuxpeno-Reid和Suwan-Lancaster合成群体相互轮回选择效果及杂种优势研究 |
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| 引用本文： | 陈泽辉,祝云芳,王安贵,郭向阳,赵丽,胡兴.玉米Tuxpeno-Reid和Suwan-Lancaster合成群体相互轮回选择效果及杂种优势研究[J].玉米科学,2013,21(4):1-5,10. |
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| 作者姓名： | 陈泽辉 祝云芳 王安贵 郭向阳 赵丽 胡兴 |
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| 作者单位： | 贵州省农业科学院旱粮研究所,贵阳,550006 |
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| 基金项目： | 贵州省科技农业攻关[黔科合NY字(2008)3002号] |
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| 摘 要： | 采用属Reid自交系和属Tuxpeno自交系形成墨瑞C0以及用属Suwan自交系、Mo17和78599形成苏兰C0。两个群体在4次遗传平衡后按半同胞相互轮回选择后分别形成改良一轮的墨瑞C1和苏兰C1。经多点产量比较,墨瑞C1×苏兰C1比墨瑞C0×苏兰C0的产量提高7.84%,达到极显著水平,而两个群体本身的产量变化不显著。群体间的平均杂种优势也从改良前的9.86%提高到改良后的16.29%。根据SSR标记计算,相互轮回选择对群体间的遗传距离略有提高。
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| 关 键 词： | 玉米 轮回选择 杂种优势 |
| 收稿时间： | 5/9/2013 12:00:00 AM |
Two Maize Populations of Tuxpeno-Reid and Suwan-Lancaster by Reciprocal Recurrent Selection and the Heterosis |
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| CHEN Ze-hui,ZHU Yun-fang,WANG An-gui,GUO Xiang-yang,ZHAO Li and HU Xing.Two Maize Populations of Tuxpeno-Reid and Suwan-Lancaster by Reciprocal Recurrent Selection and the Heterosis[J].Journal of Maize Sciences,2013,21(4):1-5,10. |
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| Authors: | CHEN Ze-hui ZHU Yun-fang WANG An-gui GUO Xiang-yang ZHAO Li and HU Xing |
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| Institution: | Upland Crops Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China;Upland Crops Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China;Upland Crops Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China;Upland Crops Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China;Upland Crops Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China;Upland Crops Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China |
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| Abstract: | Two populations of Tuxpeno-Reid and Suwan-Lancaster were developed from five Reid and four Tuxpeno inbreds, six Suwan inbreds, Mo17 and 78599 by four times random mating respectively. After one cycle of reciprocal recurrent selection, mean yield of Tuxpeno-Reid(C0)×Suwan-Lancaster(C0) was increased highly significant from 8.064 kg per plot to 8.696 kg of Tuxpeno-Reid(C1)×Suwan-Lancaster(C1), and mid-parent heterosis increased from 9.86% to 16.29%, and genetic distance by SSR between two populations increased slightly. |
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| Keywords: | Maize Recurrent selection Heterosis |
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