蓖麻种质资源主要农艺性状的综合评价与分析  

Comprehensive evaluation of agronomic traits of castor(Ricinus communis L.) germplasm resources

作　　者：胡学礼[1] 王沛琦[1] 胡尊红[1] 张锡顺[2] 杨谨[1] 严洪斌[3] 刘旭云[1] 

机构地区：[1]云南省农业科学院经济作物研究所,云南昆明650205 [2]云南省农业科学院农业经济与信息研究所,云南昆明650205 [3]云南省农业科学院,云南昆明650205

出　　处：《江苏农业学报》2016年第3期497-505,共9页Jiangsu Journal of Agricultural Sciences

基　　金：国家公益性行业专项(201003057);云南省科技计划项目(2016BB005)

摘　　要：为了加强蓖麻种质资源开发和利用,在对筛选出的50份优异蓖麻种质材料的10个主要农艺性状进行相关性分析的基础上进行主成分分析和聚类分析。确定了5个主成分,其累计贡献率为91.018%。5个主成分分别反映产量构成、植物长势、蒴果数、株高和百粒质量。把50份蓖麻种质聚类并划分为3大类群,第I类资源的单株生产力表现最低,可用于选育矮秆密植型品种;第II类资源百粒质量在3类材料中最高,表现较好,可用于选育大粒型品种;第III类资源的主穗蒴果数、单株有效穗数、单株蒴果数等性状都最高,单株生产力表现最好,可用于选育高产、中粒型的品种。For better utilization of castor（ Ricinus communis L.） germplasm resources,the principal component analysis and cluster analysis were employed to analyze ten agronomic traits of fifty castor germplasm resources. Five principal components were defined with cumulative contribution of 91. 02%,representing yield component,growth potential,the number of capsules,plant height and the 100-kernel weight,respectively. Fifty germplasm resources were clustered into three categories. With the lowest productivity per plant,the first category could be used as a resource to breed dwarf stem and compact planting variety. The 100-kernel weight of the second category was the highest,and the category could be applied to breed large-grain type variety. The third category showed the greatest number of main spike capsules,number of effective spikes per plant,number of capsules per plant,and the productivity per plant,which could be used to breed high yield and middle-grain type variety.

关 键 词：蓖麻 种质资源 相关性分析 主成分分析 聚类分析 

分 类 号：S565.6[农业科学—作物学]