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林业科学 ›› 2002, Vol. 38 ›› Issue (3): 171-176.doi: 10.11707/j.1001-7488.20020330

• 问题讨论 • 上一篇    

综合指数法在核桃选种中的应用研究

高焕章 吴楚 李申如 周瑞锋   

  1. 湖北农学院园艺系,荆州434103;湖北建始县林业局,建始445300
  • 收稿日期:2001-02-20 修回日期:1900-01-01 出版日期:2002-05-25 发布日期:2002-05-25

THE APPLICATION OF SYNTHETIC INDEX METHOD ON SUPERIOR VARIETY SELECTION OF WALNUT

Gao Huanzhang,Wu Chu,Li ShenruZhou,Ruifeng   

  1. Horticulture Department, Agricultural College of Hubei Jingzhou434103;Jianshi Forestry Bureau of Hubei Province Jianshi445300
  • Received:2001-02-20 Revised:1900-01-01 Online:2002-05-25 Published:2002-05-25

关键词: 核桃, 经济性状, 主成分分析, 综合指数

Abstract:

The main economic characters of 45 walnut species from Jianshi County, Hubei, which include fruit weight, per fruit weight, per kernel weight, kernel rate, index of kernel catching, kernel weight, content of crude lipids, content of crude proteins, and content of soluble sugars, were analysed by principal component analysiss according to the correlation matrix of samples. According to more than 91% of the cumulativee variance proportion, six principal components and their function equations of the main economic characters of walnut from Jianshi, Hubei, were proposed. The relevant combinations of the principal components were proposed according to the trendency of market requirement after the important values of the principal components were computed, and the synthetical evaluating indexes were built according to the arrangement of the excellent trees for different market aims. The results are similar to the actual phenotypes of excellent trees, suggesting synthetical index analysis is more scientific and simple than the tranditional giving marks and single-charactered selection in evaluation of the main economic characters of walnut. The results provided theoretical basis for the selection and usage of walnut.

Key words: Juglans regia, Economic characters, Principal component analysis, Synthetical index