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[目的]研究影响高产品种五谷1790产量的主要性状因素。[方法]以杂交玉米品种区域试验中高产品种五谷1790为材料,运用限制因子学说和灰色关联分析法,研究了株高、穗位高、有效穗、穗粒数和千粒重等性状与产量的关系,确定影响产量的主要性状限制因子。[结果]五谷1790主要性状与产量关联度的大小依次为穗粒数>有效穗数>穗位高>株高>千粒重,穗粒数和单位面积有效穗是影响产量的主要因素。[结论]该试验为玉米品种五谷1790高产栽培提供理论依据。
[Objective] The research aimed to study the main trait factors affecting the yield of high-yielding grain-1790. [Method] With the high yielding cultivar “Ge179” as the material in the regional experiment of hybrid maize varieties, the relationship between the characters of plant height, ear height, effective panicle, grains per spike, and 1000 - grain weight and yield was studied by means of restriction factor theory and gray relational analysis , Determine the impact of yield of the main trait limiting factor. [Result] The correlation degree between the main characters and the yield of grain 1790 was the main factor affecting the yield in the order of the number of spikes per plant> effective panicle number> ear height> plant height> 1000-grain weight, spike grain number and effective panicle per unit area. [Conclusion] This experiment provided the theoretical basis for the high yielding cultivation of corn variety Zhongmou 1790.