| 美国山核桃主要经济性状的主成分分析及良种选择 |
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| 引用本文： | 杨建华,李淑芳,范志远,习学良,邹伟烈,刘娇,潘莉.美国山核桃主要经济性状的主成分分析及良种选择[J].浙江林学院学报,2011,28(6):907-910. |
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| 作者姓名： | 杨建华 李淑芳 范志远 习学良 邹伟烈 刘娇 潘莉 |
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| 作者单位： | 1. 云南省林业科学院漾濞核桃研究站,云南漾濞,672500
2. 云南省林业科学院,云南昆明,650204 |
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| 摘 要： | 应用主成分分析法,由样本相关矩阵出发,对12个美国山核桃Carya illinoensis样本的8个主要经济性状坚果果形系数、平均坚果质量、坚果壳厚、坚果出仁率、核仁质量、核仁脂肪、蛋白质、单位面积（m2）树冠投影面积产果量]进行分析,以性状的累积方差贡献率达到83.99%为标准,确定了3个反映美国山核桃主要经济性状的主成分及其主成分的函数式,并通过计算样本的重要主成分值,对供试样本进行比较,进而选择综合经济性状优良的样本,其结果与品种的实际表现相符。表明用主成分分析法可以对美国山核桃主要经济性状进行综合评选。
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| 关 键 词： | 经济林学 美国山核桃 经济性状 主成分分析 良种选择 |
Principal component analysis for major economic characteristics of Carya illinoensis and selection of superior cultivars |
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| YANG Jian-hua,LI Shu-fang,FAN Zhi-yuan,XI Xue-liang,ZOU Wei-lie,LIU Jiao,PAN Li.Principal component analysis for major economic characteristics of Carya illinoensis and selection of superior cultivars[J].Journal of Zhejiang Forestry College,2011,28(6):907-910. |
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| Authors: | YANG Jian-hua LI Shu-fang FAN Zhi-yuan XI Xue-liang ZOU Wei-lie LIU Jiao PAN Li |
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| Institution: | YANG Jian-hua1,LI Shu-fang1,FAN Zhi-yuan2,XI Xue-liang2,ZOU Wei-lie1,LIU Jiao2,PAN Li2(1.Yangbi Hickory Research Institute,Yunnan Academy of Forestry,Yangbi 672500,Yunnan,China,2.Yunnan Academy of Forestry,Kunming 650204,China) |
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| Abstract: | Based on a specimen correlation matrix,eight major economic characteristics,including fruit shape coefficient,average nut weight,shell thickness of the nut,kernel ratio,kernel weight,kernel fat content,protein content,and fruit yield per square meter of projected tree crown area,for 12 cultivars of Carya illinoensis were determined using a principal component analysis.Results according to more than 83.99% of the cumulative variance,showed that the three principal components and their functional equations we... |
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| Keywords: | cash forestry Carya illinoensis economic characteristics principal component analysis selection of superior cultivars |
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