高品质陆地棉数量性状的因子分析及品种聚类分析  

Factor Analysis on Quantitative Characters and Cluster Analysis on Varieties of Upland Cotton with High Fiber Quality

作　　者：汤飞宇[1,2] 程锦 黄文新 莫旺成[2] 肖文俊[2] 张天真[1] 

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／棉花研究所,江苏南京210095 [2]江西农业大学农学院,江西南昌330045 [3]江西省经济作物技术服务站,江西南昌330046

出　　处：《江西农业大学学报》2008年第6期1014-1018,共5页Acta Agriculturae Universitatis Jiangxiensis

基　　金：中国博士后科学基金项目(20070410339);江苏省博士后科学基金项目(0602024B);江西省农业科技攻关项目(赣科发计字[2006]38号)

摘　　要：对24个高品质陆地棉品种(系)的17个数量性状进行因子分析和聚类分析。前6个公因子的累计贡献率达84.06%,分别代表纤维品质、产量、株形、衣分与果节数、铃重与子指、早熟性等陆地棉品种的主要特征;根据24个品种(系)前6个公因子的得分值,采用离差平方和法将其聚为4类,其中Ⅱ类和Ⅲ类分别在品质和产量表现最好;并选出了6个较理想的亲本,分别是A001、A016、A201B、A402B、A705、P2。同时对高品质陆地棉品种的选育进行讨论。Factor analysis was performed on 17 quantitative characters of 24 varieties（lines） of upland cotton with high quality. The cumulative contribution of the first six principal components to total variance of the population investigated reached 84.06%, representing fiber quality, yield, plant morphological trait, lint percentage and number of fruiting node, boll weight and seed index, growth period respectively. According to the scores of them in the first six principal components,24 varieties were grouped into four clusters using ward method. The second and third group exhibited the best performance in quality and yield respectively. Six better parents were selected, including A001, A016, A201 B, A402B, A705 and P2. Some suggestions on the developing of high quality upland cotton varieties are put forward.

关 键 词：陆地棉 高品质 因子分析 聚类分析 

分 类 号：S562[农业科学—作物学]