部分柚类品种的数量分类和主成分分析  

Numerical Taxonomy and Principal Component Analysis of Pumelo Cultivars

作　　者：卢华琼[1,2] 苏智先[2] 

机构地区：[1]四川省环境科学与生物多样性保护重点实验室,四川西华师范大学生物多样性研究中心,四川南充637002 [2]绵阳师范学院生态研究中心,四川绵阳621000

出　　处：《安徽农业科学》2006年第21期5510-5511,5526,共3页Journal of Anhui Agricultural Sciences

基　　金：四川省科技攻关项目(03NG001-019);四川省教育厅项目(2003A175);绵阳市科技攻关项目(2005BN001-1)

摘　　要：利用SPSS12.0软件对柚类31个品种的23个果实形态学性状进行了品种的Q型聚类及其性状的R型聚类,并对23个形态学性状进行了主成分分析。结果显示:Q型聚类可分为4个组群;R型聚类可分为5个组;经主成分分析,23个性状可综合为7个主成分,其累积贡献率达78.7%,根据前7个主成分与性状间的相关性,选出了影响力比较大的13个性状。Q-cluster analysis and R-cluster analysis were used to examine the 23 fruit characteristics of 31 pumelo cultivars, and 23 ,characteristics were analized with principal component analysis of SPSS12.0. The results revealed that 33 pumelo cultivars were classified into 4 groups based on Q-cluster analysis, 23 characteristics were divided into 5 groups according to R-cluster analysis. The principal component analysis showed that 23 characterisitics were intergrated into 7 principal components（PC） and their additive contributing rate amounted to 78.7%, and 13 major discriminating characteristics were selected acording to the relativity between 7 PC and characters. The results provided reference that was benefical for us to use fruit characteristics to evaluate and classify pumelo cultivars.

关 键 词：柚 数量分类 聚类分析 主成分分析 

分 类 号：S666.3[农业科学—果树学]