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湖北省板栗品种物候期的多元统计分析
引用本文:涂炳坤,何吉成,叶要妹.湖北省板栗品种物候期的多元统计分析[J].华中农业大学学报,1999,18(4):383-387.
作者姓名:涂炳坤  何吉成  叶要妹
作者单位:华中农业大学林学系,武汉,430070
摘    要:在物候期观测的基础上,对湖北省16个板栗品种物候期进行了系统聚类和主成分分析。聚类分析结果表明:16个板栗品种可按物候期分为五大类:中熟品种,早雌花晚落叶品种,晚熟品种,长雌花期品种和早花期品种。主成分分析结果表明:前5个主成分的累计贡献为95.80¥,它们分别说明了雄花期,雌花授粉有效期,幼果开始发育期,果实完全成熟期和物候期中的重要性。

关 键 词:板栗  物候期  聚类分析  主成分分析

MULTIANALYSIS ON PHENOLOGICAL PERIOD OF Castanea mollissima Blvme
Tu Bingkun,He Jicheng,Ye Yaomei.MULTIANALYSIS ON PHENOLOGICAL PERIOD OF Castanea mollissima Blvme[J].Journal of Huazhong Agricultural University,1999,18(4):383-387.
Authors:Tu Bingkun  He Jicheng  Ye Yaomei
Abstract:On the base of phenological observation , phenological period of 16 chestnut varieties had been studied by the cluster analytical method and the principal components analytical method. Result of the cluster analysis manifested: The 16 chestnut varieties could divided into 5 types, 1.middle variety, 2.early female flower late defoliation variety, 3. late maturing variety, 4.female long-flowering variety, 5.early flowering period variety. Result of the principal components analysis manifested: The additive contributing rate of first five principal components amounts to 95.80%, they have distinguished the importance of male flower period ,female flower pollinate validity period , fruit formation period ,full ripe and defoliation in the phenological period.
Keywords:chestnut  phenological period  cluster analysis    principal components  analysis
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