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应用灰色关联分析方法，对甜玉米杂交种主要穗部性状间、穗部性状与其它农艺性状间的相关性及主要农艺性状对单株产量的影响进行了分析。结果表明：单株产量与１０ 个农艺性状的关联序依次为株高＞穗行数＞ 行粒数＞ 叶片数＞ 茎粗＞ 穗粗＞ 穗长＞ 百粒重＞ 穗位高＞ 穗数。在影响穗形的穗部性状中，以穗粗、穗行数、轴粗作用最大，其它农艺性状对穗部性状的影响，则主要是茎粗、叶片数和行粒数。
Gray correlation analysis method was used to analyze the correlation between main ear traits, ear traits and other agronomic traits in sweet corn hybrids and the effects of main agronomic traits on single plant yield. The results showed that the order of single plant yield and ten agronomic traits was in order of plant height> ear row number> grain number> number of leaves> stem diameter> ear diameter> ear length> 100-grain weight> ear height> spike number. Among the panicle traits that affected the panicle, the panicle diameter, the panicle number and the shank diameter were the largest. The effects of other agronomic traits on the panicle traits were mainly stem diameter, leaf number and grain number.