新疆农业科学2011，Vol.48Issue(8)：1386-1391,6.
陆地棉主要农艺性状的变异性、聚类和相关性分析
Analysis of Correlation, Cluster and Variation on the Main Agronomic Characters of the Upland Cotton Cultivars or Lines
摘要
Abstract
[ Objective ] The present research was carried out to effectively provide the useful information and academic base for choosing and breeding high yield cotton variety in Xinjiang. [ Method ] The correlation, cluster and variation of the main agronomic characters were analyzed in 29 cotton cultivars or lines by using multivariate statistics. [Result] All the 29 cotton cultivars or lines were clustered into 2 major groups or 4 small categories according to the main characters. The phenotypic characteristics of those subtypes were obviously different. In all the main characters, variation coefficient of first fruit node, fruit branches, plants per 667 m2 and plant height were the most group, those of the characters of yield were the middle, and those of the characters of fiber quality were the least. Lint yield of cotton had a positive correlation with seven characteristics including bolls per plant, plants per 667 m2, lint percentage, first fruit node, weight per boll, fruit branch and fiber length, but a negative correlation with seven characteristics including plant height, seed and lint index, fiber strength, uniformity, elongation rate and micronaire. Most importantly, correlation analysis indicated that lint yield was positively relative to plants per 667 m2 and lint percentage at 0. 05 level. [ Conclusion ] lint percentage and plants per 667 m2 are the main effecting factors of lint yield, but bolls per plant and weight per boll are the second effecting factors. Consequently, augmenting plant density, choosing the upland cotton cultivars or lines of the higher lint percentage are one of important approaches for increasing lint yield of the upland cotton in Southern Xinjiang.关键词
陆地棉/变异性/聚类分析/相关性分析Key words
upland cotton/ variation/ cluster analysis/ correlation analysis分类
农业科技引用本文复制引用
宿俊吉,邓福军,陈红,宁新柱,林海,李吉莲,刘萍,冯县礼..陆地棉主要农艺性状的变异性、聚类和相关性分析[J].新疆农业科学,2011,48(8):1386-1391,6.基金项目
新疆农垦科学院青年基金项目(YQJ2009-06) （YQJ2009-06）
新疆农垦科学院引导计划项目(YYD2010-6) （YYD2010-6）
新疆兵团博士资金专项(2010JC01) （2010JC01）
