| 早熟甘蓝几个性状的相关和通径分析 |
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| 引用本文： | 吉立柱,贾占温,孙德岭. 早熟甘蓝几个性状的相关和通径分析[J]. 天津农业科学, 2005, 11(3): 12-13 |
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| 作者姓名： | 吉立柱 贾占温 孙德岭 |
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| 作者单位： | 天津科润蔬菜研究所,天津,300384 |
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| 基金项目： | 国家"863"项目(2002AA207012-5);天津市科技攻关项目(05YFGZNC01308) |
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| 摘 要： | 对10个早熟甘蓝品种(系)几个性状进行了相关和遗传通径分析,结果表明:其他几个性状对叶球重的相对重要性依次为叶球纵径(1.1472)>球形指数(-0.8110)>中心柱长(-0.6441)>株高(0.6250)>紧实度(0.4207),而遗传相关系数分别为:0.3266,-0.8033,0.5867,0.9431,-0.5242。因此,提高叶球产量应主要考虑提高株高和叶球纵径,同时兼顾球形指数的降低。
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| 关 键 词： | 甘蓝 相关 通径系数 |
| 文章编号： | 1006-6500(2005)03-0012-02 |
| 修稿时间： | 2005-06-30 |
Correlation and Path Coefficient Analysis of Traits in Early-maturing Cabbage |
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| JI Li-zhu,JIA Zhan-wen,SUN De-ling. Correlation and Path Coefficient Analysis of Traits in Early-maturing Cabbage[J]. Tianjin Agricultural Sciences, 2005, 11(3): 12-13 |
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| Authors: | JI Li-zhu JIA Zhan-wen SUN De-ling |
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| Abstract: | Five traits namely plant height, index of head shape, longitudinal diameter of head, core length and density of head in 10 early-maturing cabbage varieties were s tudied with head weight by correlation and genetic path coefficient analysis. The res ults were following: the order of the impor tance of traits on head weight was longitud inal diameter of head(1.1472)>index of hea d shape(-0.8110)>core length(-0.6441)> pl ant height(0.6250)> density of head (0.420 7), and the corresponding genetic correlat ion coefficients were 0.3266, -0.8033, 0.5 867, 0.9431 and -0.5242.Therefor,plant h eight and longitudinal diameter of head mig ht be mainly considered in order to increas e head weight in cabbage breeding. |
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| Keywords: | cabbage correlation path coeffi cient |
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