黍稷农艺性状的主成分分析与聚类分析  

Principal Components and Cluster Analysis of Agronomic Traits of Proso Millet(Panicum miliaceum)

作　　者：胡兴雨[1,2] 陆平[2] 贺建波[1] 王纶[3] 王星玉[3] 张红生[1] 张宗文[2] 吴斌[2] 

机构地区：[1]南京农业大学作物遗传与种质创新国家重点实验室,南京210095 [2]中国农业科学院作物科学研究所,北京100081 [3]山西省农业科学院作物品种资源研究所,太原030031

出　　处：《植物遗传资源学报》2008年第4期492-496,共5页Journal of Plant Genetic Resources

基　　金：国家科技部项目(2006BAD02B07-01)

摘　　要：对国家种质资源库中收集保存的8016份黍稷种质资源的株高、千粒重、生育期等11个农艺性状进行主成分分析和聚类分析,结果表明:主要农艺性状可归纳为千粒重、主茎节数、主穗长、株高、穗型、花序色、粒色、米色8个主成分,累计贡献率为86.44%;8016份黍稷种质资源可分成5大组群,各个组群都有一定的形态学特征,其中组群4的1301份种质资源的主茎节数多,单株产量、千粒重都比较大,综合性状表现较好。The agronomic traits of 8016 accessions of Panicum miliaceum were investigated. Using 11 traits including plant height, 1000-grain weight, growth period, etc. , principal components and cluster analysis were performed. The cumulative proportion of the first eight of principal components achieved 86.44%. All these accessions were divided into 5 groups. Each group has specifically morphological traits. The group 4, including 1301 accessions, had more number of main stems, more yield per plant and more 1000-grain weight indicating that germplasms in group 4 have better morphological traits.

关 键 词：黍稷 农艺性状 主成分分析 聚类分析 

分 类 号：S516[农业科学—作物学] O212.4[理学—概率论与数理统计]