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Scientia Silvae Sinicae ›› 2007, Vol. 43 ›› Issue (10): 45-50.doi: 10.11707/j.1001-7488.20071008

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Establishment and Application of Integrated Assessment System on Cold Resistance of Different Zenia insignis Provenances

Liu Xinhong1,He Xiaoyong2,3,Su Dongmei3,Wei Lai3,Yuan Deyi3,Wang Junfeng4   

  1. 1.Zhejiang Forestry Academy Hangzhou 310023; 2. Lishui Science and Technology Association of Zhejiang Province Lishui 323000; 3. Central South University of Forestry and Technology Zhuzhou 412006; 4. Lishui Forestry Institute of Zhejiang Province Lishui 323000
  • Received:2007-07-31 Revised:1900-01-01 Online:2007-10-25 Published:2007-10-25

Abstract:

Six indicators for cold resistance assessment of different Zenia insignis provenances by correlation analysis were converted to integrated index by principle component analysis, and their weight for establishing the assessment system was determined. Integrated index value of cold resistance of each provenance was obtained based on weight and its function value. The cold resistance order of different provenances was as follows: Tongdao of Hunan>Xingyi of Guizhou> Xincheng of Guangxi >Yingde of Guangdong>Jianghua of Hunan>Jingxi of Guangxin. Theses provenances of Z. insignis could be divided into 3 groups by cluster analysis. Tongdao of Hunan and Xingyi of Guizhou had better cold resistance, Xincheng of Guangxi and Yingde of Guangdong had moderate one and Jianghua of Hunan and Jingxi of Guangxi were the worse.

Key words: Zenia insignis, provenance, cold resistance, integrated assessment