棉花产量性状与纤维品质性状的关联度及典型相关分析.pdfVIP

DOI :10.15933/j.cnki .1004 -3268.2007.05.012 河南农业科学 陈荣江, 王清连, 朱明哲 (, 453003) :关联度分析表明:棉花纤维品质性状中,纺纱均匀性指数是制约2.5 %跨长、整齐度与比 度 的主导因素,2.5%跨长是制约麦克隆值的主导因素,比 度是制约纺纱均匀性指数的主导因素;产 量性状中, 铃重是制约株铃数的主导因素,衣指是制约铃重、衣分及子指的主导因素,子指是制约衣指 的主导因素。通径分析结果显示, 整齐度与衣分对皮棉产量的综合直接作用最大。经典型相关分析 可知, 增加株铃数有利于提高产量和改善纤维品质,但要注意优化成铃时间与部位,争取多结优质铃。 :棉花;产量性状;纤维品质性状 :S562　　:A 　　:1004-3268(2007)05-0043-04 The Grey Relational Grade and Canonical Correlation Betw een Yield Com onents and Fiber Quality of Cotton CHEN Rong-jiang, WANG Qing-lian, ZH U M ing-zhe (Henan Institute of Science and Technology, Xinxiang 453003, China) Abstract:The Grey interrelative analysis show ed that, among the traits of fiber quality, the index of s inning uniformity is a leading factor that affects 2.5%-s an length, uniform and strength; 2.5%-s an length is a leading factor affecting M icronaire;and strength is a leading factor affect- ing the index of s inning uniformity .Among the yield characters, boll weight is a leading factor affecting boll numbers;lint index is a leading factor affecting boll w eight,lint ercentage and seed index ;and seed index is a leading factor affecting lint index.The restoring menstrual analysis in- dicated that uniformity and lint ercentage lay the most com rehensive and direct role in the lint yield.The canonical correlation analysis showed that increasing boll numbers er lant could im- rove yield and fiber quality,but more attention should be aid to better boll-setting time and o- sition in order to get as more as higher quality bolls. Key words:Cotton;Yield characters;Fiber quality characters :2007-01-08 : :(1962-), , , , 。 ,。, :, 1990. 80%[ 770 ～ 1 125μmol/ [3]　, , , . 2