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采用灰色关联度分析法对不同抗旱品种进行产量与玉米株型性状、抗旱性状关联度分析以及抗旱性状与株型性状关联度矩阵分析。结果表明,产量与玉米各性状因素关联序列中,产量与叶片卷曲指数、雌雄开花间隔(ASI)的关联度较大;抗旱性状与株型性状的关联矩阵中关联关系较为复杂,其中叶片卷曲指数、穗秃尖与叶片数的关联最紧密,ASI与雄穗分枝数关联度最大。
Gray relational analysis was used to analyze the relationship between the yield and the type of plant and the drought resistance in different drought resistant varieties and the matrix analysis of the relationship between drought resistance and plant type. The results showed that the correlations between yield and leaf curl index and male-male flowering interval (ASI) were large in the correlations between yield and each trait of maize. The correlation matrix between drought resistance and plant type traits was more complicated, in which the leaf curl index , The tip of bald tip was most closely related to the number of leaves, and the degree of association between ASI and tassel branch was the largest.