Acta Agrestia Sinica

›› 2006, Vol. 14 ›› Issue (2): 142-146.DOI: 10.11733/j.issn.1007-0435.2006.02.010

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Analysis of the Principal Components and the Subordinate Function of Alfalfa Drought Resistance

HAN Rui-hong1, LU Xin-shi1, GAO Gui-juan2, YANG Xiu-juan1   

  1. 1. Institute of Resources and Environment, University of Forestry of Beijing, Beijing 100083, China;
    2. Research Center of Forage and Turf Industry Technology, University of Sun Yat-sen, Guangzhou, Guangdong Province 510275, China
  • Received:2005-11-14 Revised:2006-03-16 Online:2006-05-15 Published:2006-05-15

紫花苜蓿抗旱性主成分及隶属函数分析

韩瑞宏1, 卢欣石1, 高桂娟2, 杨秀娟1   

  1. 1. 北京林业大学资环学院, 北京, 100083;
    2. 中山大学草业与绿地技术研究中心, 广州, 510275
  • 作者简介:韩瑞宏(1974- ),女,内蒙古牙克石人,博士研究生,E-mail:hrhfly@126.com

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Abstract: The drought resistance of ten alfalfa germplasm resources was evaluated by principal components analysis and subordinate function analysis.Results show that the 17 significantly different drought-resistance indexes could be classified into 4 component parts: biomass factor,plant morphological factor,root factor,and stress index factor.The capacity of drought resistance of the ten alfalfa germplasm resources is gauged as follows: Longdong>BL-02-388>Aohan>BL-2-312>BL-02-344>Gongnong NO 1>Zhongmu NO 1>BL-02-353>Xinjiang Daye>BL-02-329.

Key words: Alfalfa, Drought resistance, Principal components analysis, Subordinate function analysis

摘要： 应用主成分及隶属函数分析法对国内外10个紫花苜蓿种质资源的抗旱性进行评价,结果表明:17个差异显著的抗旱指标通过主成分分析归纳成生物量因子、株型因子、根系因子和胁迫指数因子4个主成分;10个紫花苜蓿种质资源的抗旱性顺序由强到弱依次为:陇东、BL-02-388、敖汉、BL-02-312、BL-02-344、公农1号、中苜1号、BL-02-353、新疆大叶和BL-02-329。

关键词: 紫花苜蓿, 抗旱性, 主成分分析, 隶属函数分析

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