江苏省水稻品种产量性状相关及聚类分析  

Correlation and Cluster Analysis of Yield Characters of Rice Varieties in Jiangsu Province

作　　者：张安存[1] 王先如 邓世峰 陈次娥 吴明 周莉 ZHANG An-cun;WANG Xian-ru;DENG Shi-feng(Yancheng Institute of Breeding Institute of Jiangsu Dahua Seed Enterprise Co.,Ltd.,Dongtai,Jiangsu 22423)

机构地区：[1]江苏省大华种业集团有限公司育种研究院盐城研究所,江苏东台224236

出　　处：《安徽农业科学》2018年第24期25-27,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]对江苏省2001—2017年水稻品种产量性状进行相关及聚类分析。[方法]分析2001—2017年审定推广的131个品种在江苏省区域试验产量表现,并对其农艺及经济性状进行相关和聚类分析。[结果]江苏省高产育种主要通过在适当降低穗数的基础上,较大幅度提高每穗总粒数,稳定结实率,适当增加千粒重来实现;46个水稻品种归为3类,显示出遗传距离较近、遗传基础狭窄的特点;建议超高产育种要创造最适理想株型,扩大遗传多样性,保证足够穗数,挖掘较大的穗型潜力,并协调穗大、粒重、高结实之间的关系。[结论]该研究为江苏省水稻超高产育种提供参考依据。[ Objective ] To cary out correlation and cluster analysis of yield characters of rice varicties in Jiangsu Province. [ Method ] Yield performance of 131 varieties in regional test in Jiangsu Province in 2001-2007 was analyzed. And correlation and cluster analysis of thier agronomic and economic character was carried out. [Result] High-yield bleeding in Jiangsu Province was aeheived mainly through reducing ear number, greatly enhancing total grains per ear, stablizing seed-setting rate, appropriately increasing 1 000-grain weight. The 46 rice varieties were classi- fied into 3 categories, indicating the close genetic distance and the narrow genetic base. Therefore, super-high yield bleeding in Jiangsu Province should cleat the most proper plant type, expand genetic diversity, ensure enough ear number, exploit larger potential of ear shape, and coordi- nate the relationship among big ear, high seed-setting rate and gloat grain weight. [ Conclusion] This research provided references tor the super- high yield bleeding in Jiangsu Province.

关 键 词：水稻 产量 相关 聚类 

分 类 号：S511[农业科学—作物学]