南方农业学报2011，Vol.42Issue(12)：1449-1453,5.
引进国际水稻所籼稻品系主成分及聚类分析
Principal component and cluster analysis of indica lines cultivars introduced from IRRI
摘要
Abstract
[Objective]The present experiment was conducted to comprehensively compare and appraise quality of indica rice resources introduced from the IRRI for their effective use in breeding programs. [ Method ]The principal component and cluster analysis of main agronomic traits of 118 indica rice resources were carried out using DPS software. [Result] The results showed that the six major factors, viz., grain shape, grain weight, grain length, seed setting, plant height and maturity contributed to 85.1973% cumulative rate in trait variation in the principal component analysis. Based on principal component vectors, 118 introduced materials were grouped into 3 major types. The first group containing 34 materials was characterized by dwarf stems, multiple panicles and long-grains, the second one containing 49 materials had long stem and long panicles, and showed late maturity and less tillering. The third group containing 35 materials was characterized by semi-dwarf stem, small panicle size, high seed setting and early maturity. [Conclusion]The principal component and other information may be used for cluster analysis of major factors for more effective use of introduced germplasm resources.关键词
籼稻/农艺性状/主成分分析/聚类分析Key words
indica rice/ agronomic traits/ principal component analysis/ cluster analysis分类
农业科技引用本文复制引用
刘百龙,石瑜敏,王威豪,韦善富,冯锐,宋智萍,毛昌祥..引进国际水稻所籼稻品系主成分及聚类分析[J].南方农业学报,2011,42(12):1449-1453,5.基金项目
广西科学基金项目(桂科自0991201,桂科青0832064) （桂科自0991201,桂科青0832064）
广西农业科学院基本科研业务专项项目(200921) （200921）
