| 用主成分分析法研究西葫芦早熟性及品种分类 |
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| 引用本文： | 欧阳新星,许勇,张海英,王永健.用主成分分析法研究西葫芦早熟性及品种分类[J].华北农学报,1999,14(2):125-128. |
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| 作者姓名： | 欧阳新星 许勇 张海英 王永健 |
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| 作者单位： | 北京蔬菜研究中心,北京,100089 |
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| 摘 要： | 通过观察与分析５２个西葫芦品种的１１个性状，利用主成分分析法确定出５个主要分量性状，其中第一、第二主分量性状的累积贡献率为６５．０６％．根据其主分量的大小选出了综合性状优良的早熟西葫芦材料，并利用主成分分析法将５２份西葫芦材料分为６类。
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| 关 键 词： | 西葫芦(Cucurbita pepo L.) 主成分分析 早熟性 分类 |
Studies on Early-mature and Classification in Squash (Cucurbita pepo L.) Using Principal Component Analysis |
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| Ouyang Xinxing,Xu Yong,Zhang Haiying,Wang Yongjian.Studies on Early-mature and Classification in Squash (Cucurbita pepo L.) Using Principal Component Analysis[J].Acta Agriculturae Boreali-Sinica,1999,14(2):125-128. |
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| Authors: | Ouyang Xinxing Xu Yong Zhang Haiying Wang Yongjian |
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| Abstract: | traits of 52 squash cultivars were observed and analysed. Five principal branch quantitative traits were determined using the principal component analysis. The total accumulated contribution rate of the first and second principal branch traits was 65.06%. Based on the magnitude of the principal component values of experimental materials, the earlymature cultivars of squash with fine comprehensive traits were selected. A total of 52 squash cultivars was classified into six groups using principal component analysis. |
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| Keywords: | Cucurbita pepo L Principal components analysis Early maturity Classification |
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