烤烟品系比较中灰色关联度分析的应用

为给烤烟新品系的选育和评价以及品种审定提供参考依据,利用灰色关联度分析方法,对11个烤烟品系进行主要经济性状的综合分析评判,分析结果表明:品系2002005-8和2002004-11综合表现最好,其中有8个品系都好于对照K326.等权灰色关联分析与加权灰色关联分析的结果基本一致.其分析结果与品种的实际表现相一致.优于对照的8个新品系综合性状都具有相当的优势,可继续试验.

Application of Grey Relational Analysis in the Overall Evaluation of Flue-cured Tobacco Lines

In order to provide a reference for the selection and breeding, Seven index of main characters of 11 Flue-cured Tobacco lines were analyzed and evaluated by the way of the grey relational grade. The results indicated that comprehensive performance of the lines 2002005-8 and 2002004-11 were the best, eight lines of all lines were better than K326. The results of equal weight correlation degree and weighted correlation degree were the identical and coincided with actual performance of the lines. 8 lines had more considerably preponderance and could be tested further.