摘要
不同生态条件下,麦克隆值与单株成铃的变异系数最大。关联分析结果表明,2.5％跨长是制约气纱品质与整齐度的主导因素,整齐度是制约2.5％跨长与比强度的主导因素,2.5％跨长与产量的变化趋势接近。在产量构成因素中衣分是制约单株成铃、单铃重、衣指的主导因素,衣指是制约衣分的主导因素,而单铃重是制约子指的主导因素。通径分析结果表明,2.5％跨长与衣分对产量的综合直接作用最大。主成分分析表明,在湖南特定的环境条件与栽培条件下单株成铃、单铃重、衣分三者的信息量仅占总信息量的82.66％;2.5％跨长、麦克隆值、比强度三者的信息量占产量总信息量的66.89％。
The study showed that the variation coefficients of micronaire and boll mumber per plant are the largest in the fiber quality and yield properties. By the interrelative methods of grey systematic theory, the fiber length is one of the significant factors that affects uniformation and gas yarn quality; the uniformation is one of the significant factors that affects fiber length and strength;the gas yarn quality is one of the significant factors that affects micronaire. More over, fiber length is the closest against the yield; Lint percentage is one of the significant factors that affects boll mumber per plant and seed cotton per plant and lint index; lint index is one of the significant factors that affects lint percentage ; seed cotton per plant is one of the significant factors that affects seed index. By restoring menstrual analyses, the direct action to the yield of fiber length and lint percentage is the largest; On the grounds of primary component analysis that boll mumber per plant, boll weight and lint percentage add up to 82. 66% of the gross information content under the condition of special e-cosystem and cultivation in Hunan. Fiber length, strength and micronaire add up to merely 66.89% of yield.
出处
《棉花学报》
CSCD
北大核心
2003年第6期348-352,共5页
Cotton Science
基金
湖南省农业厅首批学科带头人项目
