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应用生态学报 ›› 2011, Vol. 22 ›› Issue (12): 3315-3320.

• 研究论文 • 上一篇    下一篇

多元统计分析方法在万寿菊品种抗旱性评价中的应用

田治国1,王飞2**,张文娥2,3,赵秀明2   

  1. 1西北农林科技大学林学院, 陕西杨凌 712100; 2西北农林科技大学园艺学院, 陕西杨凌 712100;3贵州大学农学院, 贵阳550025
  • 出版日期:2011-12-18 发布日期:2011-12-18

Drought-resistance evaluation of marigold cultivars based on multiple statistics analysis.

TIAN Zhi-guo1, WANG Fei2, ZHANG Wen-e2,3, ZHAO Xiu-ming2   

  1. 1College of Forestry, Northwest A & F University, Yangling 712100, Shaanxi, China;2College of Horticulture, Northwest A &F University, Yangling 712100, Shaanxi, China;3College of Agriculture, Guizhou University, Guiyang 550025, China
  • Online:2011-12-18 Published:2011-12-18

摘要: 利用主成分分析法、隶属函数法和聚类分析法,对9个万寿菊品种16个生理指标的抗旱性进行综合评价.结果表明: 不同品种万寿菊的16个生理指标变化程度不同,其中脯氨酸(Pro)、H2O2和抗坏血酸过氧化物酶(APX)对干旱胁迫的敏感性最大,而且部分抗旱系数之间显著相关;4个主因子代表16个生理指标抗旱性88.6%的数据信息,‘珍妮’和‘金门’、‘鸿运’、‘珍妮’、‘拳王’分别在4个主因子上的抗旱性最强;9个品种的抗旱性综合评价值大小为:‘珍妮’>‘金门’>‘鸿运’>‘拳王’>‘巨人’>‘大英雄’>‘小英雄’>‘迪阿哥’>‘发现’;聚类分析将9个品种分为3类,其中‘金门’、‘珍妮’、‘鸿运’和‘拳王’属于抗旱品种.

关键词: 万寿菊, 抗旱性, 主成分分析, 隶属函数, 聚类分析

Abstract: By the methods of principal component analysis, subordinate function, and cluster analysis, a comprehensive evaluation was conducted on the drought-resistance of 16 physiological indices of nine marigold cultivars. Under drought stress, the 16 physiological indices had different responses, among which, free proline (Pro), H2O2, and ascorbate peroxidase (APX) showed the greatest sensitivity. There existed significant correlations in the drought-resistance coefficients of parts of the physiological indices. Four principal factors presented 88.6% of the information of the 16 indices, and the cultivars ‘Janie’ and ‘Gate gold’, ‘Bonanzn’, ‘Janie’, and ‘Chokdee’ had the strongest drought-resistance for the 4 principal factors, respectively. The comprehensive evaluation value of the drought-resistance of the 9 cultivars was in the order of ‘Janie’ > ‘Gate gold’ > ‘Bonanza’ > ‘Chokdee’ > ‘Giant’ > ‘Great hero’ > ‘Little hero’ > ‘Durango’ > ‘Discovery’. The 9 cultivars could be clustered into 3 groups, and ‘Gate gold’, ‘Janie’, ‘Bonanza’ and ‘Chokdee’ belonged to the drought-resistance group.

Key words: marigold, drought-resistance, principal component analysis, subordinate function, cluster analysis