棉花产量和品质性状的典型相关分析  

Analysis of Canonical Correlation Between the Groups of Yield and Quality Traits in Upland Cotton

作　　者：承泓良[1] 刘桂玲[1] 蒋玉琴[1] 唐灿明[1] 

机构地区：[1]江苏省农业科学院经济作物研究所

出　　处：《江苏农业学报》1991年第S1期1-5,共5页Jiangsu Journal of Agricultural Sciences

摘　　要：运用典型相关分析法,研究了50个品种(系)和杂交组合F_2、F_3和F_4代皮棉产量与纤维品质这两组性状间的相关关系。结果表明:(1)皮棉产量与纤维品质间存在相关关系,这与前人报道相一致;(2).遗传背景不同,构成产量与纤维品质之间相关性的主要原因也不同。品种(系)群体,主要是皮棉产量与2.5％跨距长度间关联性引起的,组合Ⅰ和Ⅱ,主要是单株结铃数与比强度之间的关联性引起的;组合Ⅲ主要是单铃籽棉重与麦克隆值之间的关联性造成的.讨论了典型相关分析结果在棉花育种上的意义,并提出了产量与纤维品质相关的一般规律与特殊规律的概念。The canonical correlation between the two groups of traits regarding yield and fibre quality with fifty varieties (strains) and the F2 ,F3 and F4 generations of three crosses in Upland cotton was investigated in 1985-1988. The results showed that : (1) There was a correlation between the two groups of traits ,which coincided with the results reported previously; (2) The main cause of correlation between the two groups of traits was not the same for populations of different genetic backgrounds. In the population of a variety (strain),the main cause was the relation of lint yield to 2. 5%SL;for crosses Ⅰ and Ⅱ ,it was the relation of boll number per plant to fibre strength ;zor cross Ⅲ ,the relation between boll size and micronaire reading. The application of the results obtained from canonical correlation analysis to cotton breeding is discussed and the concept of general and special regularity of the correlation between groups of yield traits and fibre quality traits is presented.

关 键 词：棉花育种 产量 纤维品质 典型相关 

分 类 号：S[农业科学]