中文摘要：

基于农艺性状和纤维品质对61份彩色棉种质材料进行鉴定分析，结果表明：材料间衣分、2．5％跨长、马克隆值呈极显著差异，整齐度、伸长率、比强度和单株铃数存在显著差异，株高、果枝数、单铃重差异不显著；供试材料纤维品质较差，除中国农业科学院棉花研究所选育的棕125、棕絮1号等材料外，大部分种质系2．5％跨长、比强度等指标不能满足纺织工业的需求，但仍有31份种质系单一性状较优，如棕2—63（IAA）、棕3-944等。采用类平均法对供试材料进行聚类分析，61份材料聚为7个类群，供试材料表现型性状相似较低，尤其部分基础彩色棉遗传材料与其他材料相似性极低，单独构成一类，如皱缩红鸡角叶棕絮、hunan绿等。综合分析表明，供试材料农艺性状和纤维品质较差，遗传多样性较丰富。

英文摘要：

Based on agronomic traits and fiber quality, identification and variance analysis of sixty-one colored cotton lines were conducted. The results showed that there were extremely significant differece in lint percentage, 2.5% span length and micronaire value, and significant differece in uniformity, elongation, fiber strength and boll number per plant, but the boll weight, plant height and number of branch per plant had no significant difference among differrent colored cotton lines. Except Zong 125 and Zongxu 1, dveloped by Cotton Research Institute of China, the fiber quality of most lines were poor and can not meet the needs of textile using. However, 31 colored cotton lines including Zong 2-63 （IAA） , Zong 3-944 etc. had good quality for certain fiber traits. The tested cotton lines were divided into seven field-based groups （FGs） by clustering analysis with the unweighted pair-group method of arithmetic averages （UPGMA）. There was great diversity of phenotypic characteristics among colored lines, especially some basic genetic colored cotton lines were clustered into single group, and had more far genetic distances with other lines. In a summary, the colored cotton lines had poor agronomic traits and fiber quality with abundant genetic diversity.