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利用灰色关联度分析的方法对１５个高赖氨酸玉米双列杂交组合进行收获时籽粒含水量与穗部及籽粒性状的关联分析。结果表明，粒长、轴粗、穗粗、穗长与收获时籽粒含水量的关联度较大；粒重、容重次之；粒厚、粒宽最小。因此，选育收获时籽粒含水量低的高赖氨酸玉米，应选择粒较短、轴较细的类型，同时应注意选择长穗、高容重来弥补穗粗和籽粒体积下降所造成的产量下降
Correlation Analysis of Grain Moisture and Panicle and Grain Traits in 15 High - Lysine Crossbred Combinations Harvested by Gray Correlative Degree Analysis. The results showed that grain length, axis thick, ear diameter, spike length were more correlated with grain water content at harvest; grain weight and bulk density were the second; grain thickness and grain width were the smallest. Therefore, the selection of high-lysine corn with low water content during grain harvest should be based on the shorter kernel and smaller axis. At the same time, we should choose long-spike and high bulk density to make up for the decrease of ear diameter and grain volume decline