| 夏玉米主要穗部性状与单株产量之间的相关和通径分析 |
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| 引用本文： | 闫海霞,柳家友,吴伟华.夏玉米主要穗部性状与单株产量之间的相关和通径分析[J].山东农业科学,2008(1):7-9,50. |
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| 作者姓名： | 闫海霞 柳家友 吴伟华 |
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| 作者单位： | 漯河市农业科学院,河南,漯河,462000 |
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| 摘 要： | 对33个夏玉米杂交组合的7个穗部性状与单株产量间进行相关和通径分析。相关分析结果表明,出籽率、百粒重与单株产量的相关达到显著水平。进一步进行通径分析表明,各性状对单株产量的相对重要性依次为:穗长>出籽率>百粒重>穗粗>穗行数>行粒数>秃尖长。因此,增加穗长、提高出籽率和百粒重,并兼顾其它性状是夏玉米获得高产的有效途径。
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| 关 键 词： | 夏玉米 果穗性状 单株产量 相关系数 通径系数 |
| 文章编号： | 1001-4942（2008）01-0007-04 |
| 收稿时间： | 2007-08-21 |
| 修稿时间： | 2007年8月21日 |
Correlation and Path Analysis of Main Ear Characters and Individual Yield of Summer Maize |
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| YAN Hai-xia,LIU Jia-you,WU Wei-hua.Correlation and Path Analysis of Main Ear Characters and Individual Yield of Summer Maize[J].Shandong Agricultural Sciences,2008(1):7-9,50. |
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| Authors: | YAN Hai-xia LIU Jia-you WU Wei-hua |
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| Abstract: | Correlation and path analysis of individual yield and seven ear characters were made in 33 summer maize hybridized combinations.The results of correlation analysis indicated that shelling percentage and 100-kernel weight were significantly related with individual yield.The results of path analysis indicated that the relative importance of ear characters in turn is ear length,shelling percentage,100-kernel weight,ear diameter,row number,kernel number of per row and bald length.Therefore,increasing ear length and enhancing shelling percentage and 100-kernel weight are effective approach to get high-yield of summer maize hybrids.At the same time,the other traits should be considered. |
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| Keywords: | Summer maize Ear characters Individual yield Correlation coefficient Path coefficient |
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