早熟棉品种的灰色关联分析

Grey Relational Grade Evaluation on Early Maturity Cotton Varieties

[目的]明确各种性状对早熟棉花产量的影响,找出高产育种的有效方法。[方法]采用灰色关联度分析法,对来源不同的18个早熟棉花品种(系)进行了分析,并探讨了灰色关联度分析在早熟棉种质资源综合评价中的应用。[结果]依据各品种的灰色关联序所进行的综合评价与品种的实际表现是基本一致的。[结论]灰色关联度分析方法可以明确资源筛选中的育种目标与方向,为早熟棉种质资源研究提供了参考。

[ Objective ] The effect of various characters on yield of early maturity cotton varieties were understood to find out an effective method for high-yield breeding. [ Method] The yield and main agronomic characteristics of 18 early maturity cotton varieties in Handan Academy of Agri- cultural Sciences were studied by using the grey relational grade analysis, and application of the grey relational analysis in early maturity cotton germplasm comprehensive evaluation was discussed. [ Result] The comprehensive evaluation of each type based on the grey relational sequence was basically consistent with varieties of actual performance. [ Conclusion] The grey relational grade analysis method can clear breeding target and direction of resource screening, and provide reference for early maturity cotton zermolasm research and breedinz.