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本文应用灰色系统理论中关联度分析法对１０个玉米杂交种的６个相关因素与子粒产量的关联度分析，结果表明玉米杂交种产量与其相关因素的关联次大小顺序为：生育期γ１＞抽丝或γ２＞穗长γ３＞穗粗γ４＞百粒重γ６＞粒行数γ５．明确了各因素对产量影响大小的顺序和主次关系。玉米子粒产量主要取决于与其关联度较高的生育期、抽丝期、穗长等主要因素。为选育高产优质玉米杂交种提供了理论依据。
In this paper, the gray relational analysis was used to analyze the correlation between 6 related factors and grain yield of 10 maize hybrids. The results showed that the order of correlation between the yield of maize hybrid and its related factors was γ1> Silk or γ2> ear length γ3> ear diameter γ4> 100-grain weight γ6> grain number γ5. Clarified the order and primary and secondary relationship between the factors affecting the yield. Maize grain yield mainly depends on its associated with the higher growth period, spinning period, spike length and other major factors. It provides a theoretical basis for breeding high yield and high quality corn hybrids.