| 粳型水稻形态遗传分化与杂种优势的研究 |
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| 引用本文： | 刘炜,史延丽,王坚,李自超,张洪亮.粳型水稻形态遗传分化与杂种优势的研究[J].种子,2008,27(11). |
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| 作者姓名： | 刘炜 史延丽 王坚 李自超 张洪亮 |
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| 作者单位： | 1. 宁夏农林科学院农作物研究所,宁夏,永宁,750105
2. 中国农业大学作物学院,北京,100094 |
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| 基金项目： | 宁夏国际科技合作项目，宁夏自然科学基金 |
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| 摘 要： | 利用9个不同生态类型的50份水稻亲本材料,以生态型为单位进行双列杂交,配制366个组合,依据形态指数研究了各类型粳稻品种的形态遗传分化以及遗传分化与杂种优势的关系。结果表明:各生态型间形态指数差异与其F_1杂种优势相关不显著,但形态上籼粳分化的差异是杂种优势产生的重要基础。
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| 关 键 词： | 水稻 生态型 杂种优势 形态指数 |
Studies on Morphological Differentiation and Heterosis of Japonica Rice |
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| LIU Wei,SHI Yan-li,WANG Jian,LI Zi-chao,ZHANG Hong-liang.Studies on Morphological Differentiation and Heterosis of Japonica Rice[J].Seed,2008,27(11). |
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| Authors: | LIU Wei SHI Yan-li WANG Jian LI Zi-chao ZHANG Hong-liang |
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| Abstract: | Fifty varieties of 50 were used to analyze the heterosis of the F1 hybrids ,which were created in a di- allel set of cross between 9 ecological types.Based on the morphological index,the morphological genetic dif- ferentiation was studied,and the relation between genetic differentiation and heterosis was also studied.The re- suits showed that the correlation coefficient between the difference of morphological index and heterosis of yield was not significant,but the difference of morphological differentiation plays an important role in heterosis. |
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| Keywords: | rice ecotypes heterosis morphological index |
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