| 云南小油菜主要农艺性状的相关及通径分析 |
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| 引用本文： | 张培竹,彭少丹,马忠琴,厦国银,刘中桥,林良斌.云南小油菜主要农艺性状的相关及通径分析[J].甘肃农业科技,2009(8):12-15. |
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| 作者姓名： | 张培竹 彭少丹 马忠琴 厦国银 刘中桥 林良斌 |
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| 作者单位： | 1. 云南省罗平县农业局,云南,罗平,655800
2. 云南农业大学农学与生物技术学院,云南,昆明,650201 |
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| 基金项目： | 云南省自然科学基金"云南省野生油菜资源多样性及亲源关系的研究" |
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| 摘 要： | 对17份云南小油菜材料的主要农艺性状进行相关及通径分析的结果表明，各性状与单株产量的相关遗传力均小于单株产量的遗传力，因此利用某一个性状作间接选择比对单株产量作直接选择的效率低。通过株高、二次有效分枝数和单株角果数对单株产量进行直接选择或间接选择，效果都不明显或有负面影响；一次有效分枝数、角果粒数和分枝部位对单株产量的影响是通过直接作用和间接作用来实现的；在早期对一次有效分枝角果数与二次有效分枝角果数两个性状的选择会更加有效，同时进行间接选择会增强效果。
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| 关 键 词： | 云南小油菜 农艺性状 通径分析 遗传力 相关遗传力 |
Correlation and Path Analysis of Major Agronomic Traits of Small Rapeseed in Yunnan |
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| ZHANG Pei-zhu,PENG Shao-dan,MA Zhong-qin,SHA Guo-yin,LIU Zhong-qiao,LIN Liang-bin.Correlation and Path Analysis of Major Agronomic Traits of Small Rapeseed in Yunnan[J].Gansu Agricultural Science and Technology,2009(8):12-15. |
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| Authors: | ZHANG Pei-zhu PENG Shao-dan MA Zhong-qin SHA Guo-yin LIU Zhong-qiao LIN Liang-bin |
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| Institution: | 1.Agricultural Bureau of Luoping County;Luoping Yunnan 655800;China;2.College of Agronomy and Biotechnology;Yunnan Agricultural University;Kunming Yunnan 650201;China |
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| Abstract: | 17 small rapeseeds were used as materials in Yunnan and correlation and path of the major agronomic traits were analyzed.The results indicated that correlative heritability between single plant yield and the other agronomic traits were lower than the heritability of single plant yield,and the indirect-selection efficiency of sole quantitative traits is lower than direct-selection efficiency of single-plant yield;The direct or indirect selection of the single plant yield by the height of the plant,the number... |
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| Keywords: | Small rapeseed in Yunnan Agronomic traits Path analysis Heritability Correlated heritability |
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