夏玉米杂交组合农艺性状与产量对比分析

Comparative Analysis of Agronomic Characters and Yield of Summer Maize Hybrid Combination

通过田间筛选,选取优良的夏玉米杂交组合进行对比鉴定。试验结果表明,不同玉米杂交组合产量之间存在显著差异,其中穗行数、行粒数、穗粒质量与产量存在显著相关性,在玉米田间筛选鉴定时可作为主要参考的农艺性状,其中穗长、穗粗、生育期、株高也对产量的形成有一定影响,可作为辅助参考的农艺性状。通过对玉米农艺性状的回归和通径分析可知,穗粒质量是影响玉米产量的主要农艺性状,对产量提高起到重要的作用。

Through field screening,the excellent summer maize hybrid combination was selected for comparative identification.The results showed that there were significant differences in yield among different maize hybrid combinations,and the number of rows per ear,the number of grains per ear and the quality of grains per ear were significantly correlated with the yield,which could be used as the main reference agronomic traits in maize field screening and identification.Among them,ear length,ear diameter,growth period and plant height also had certain effects on the formation of yield and could be used as auxiliary reference agronomic traits.Through the regression and path analysis of maize agronomic traits,it can be seen that ear quality is the main agronomic trait affecting maize yield,and plays an important role in increasing yield.