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对玉米杂交种子粒产量、生育日数、植株和果穗结构性状的相关测定表明,玉米杂交种的子粒产量与全生育日数尤其是生育后期日数、全株叶片数、单株粒数、单穗粒重呈极星著正相关。单穗粒重取决于子粒行数,其次是一行子粒数。单株有效穗数和百粒重都是比较独立的性状,但受环境条件的影响较大。就某个特定的玉米杂交种而言,百粒重随栽培条件不同而有较大的变异,并与子粒产量呈极显著正相关。
The results of maize hybrid seed yield, birth days, plant and ear structure traits showed that the yield of maize hybrids was positively correlated with the number of full-days, especially the number of late-growing days, the number of whole-plant leaves, Very stars are positively related. The grain weight of a single spike depends on the number of rows of seeds, followed by the number of rows of seeds. The effective panicles per panicle and 100-grain weight are more independent traits, but are more affected by environmental conditions. For a particular maize hybrid, the 100-grain weight varies greatly with different cultivation conditions and has a significantly positive correlation with grain yield.