| 玉米轮回选择测交株表型值与配合力及遗传力的关系 |
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| 引用本文： | 张永林,王云生,王殊华.玉米轮回选择测交株表型值与配合力及遗传力的关系[J].东北农业大学学报,1992(1). |
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| 作者姓名： | 张永林 王云生 王殊华 |
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| 作者单位： | 东北农学院农学系，东北农学院农学系，东北农学院农学系 |
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| 摘 要： | 对东农群体-1的两轮测交株表型值与配合力进行了相关分析,同时还用亲子相关法估算配合力的狭义遗传力。结果表明,测交株的株高、穗高、抽丝幼穗数同配合力的相关系数达到0.05或0.01的显著水平,其中抽丝幼穗数对玉米选株测交更有指导作用。结果还表明,高配合力的测交株遗传力也高。说明提高选择强度能加速加性基因的积累。
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| 关 键 词： | 玉米 轮回选择 测交株 表型值 配合力 遗传力 相关分析 |
RELATIONSHIPS BETWEEN THE PHENOTYPIC VALUE AND THE COMBINING ABILITY AND HERITABILITY OF TESTCROSS PLANTS IN MAIZE RECURRENT SELECTION |
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| Zhang Yunglin Wang Yunsheng Wang Shuhua.RELATIONSHIPS BETWEEN THE PHENOTYPIC VALUE AND THE COMBINING ABILITY AND HERITABILITY OF TESTCROSS PLANTS IN MAIZE RECURRENT SELECTION[J].Journal of Northeast Agricultural University,1992(1). |
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| Authors: | Zhang Yunglin Wang Yunsheng Wang Shuhua |
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| Abstract: | The phenotypic value and the combining ability of two cycles of testcross plants fromNEAC population-1 were analyzed by means of correlation and offspring parent correlation.The results showed that the correlation coefficients between plant height,ear height and thenumber of silked shoots and the combining ability were significant at the level of 0.05 or 0.01.Among them,the number of silked shoots was most useful for selecting maize testcross plants.The testcross plants with higher combining ability had higher heritability.It is suggested thatraising selection intensity can speed up the accumulation of additive genes. |
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| Keywords: | maize recurrent selection testcross plant phenotypic value combining ability heritability correlation analysis |
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