44个玉米杂交种产量与主要农艺性状的灰色关联度分析

为探明玉米品种的主要农艺性状对产量的影响程度,用灰色关联度的分析方法,对2013年44个玉米品种的主要农艺性状与产量进行关联分析。结果表明:在参试品种中穗粗(0.9874)、叶片数(0.9645)、穗长(0.9488)、株高(0.9465)、穗行数(0.9429)、百粒重(0.9244)、穗位(0.9088)、出籽率(0.8882)、秃尖(0.7381)等性状影响着玉米产量,其中,影响最大的主要性状是玉米的穗粗、叶片数和穗长,其次是株高和穗行数,千粒重对产量的影响相对居中,相比较之下,穗位、出籽率和秃尖对产量的影响最小。

Grey Correlation Analysis of Yield and Main Agronomic Traits of 44 Maize Hybrid Lines

to find the main agronomic characters of maize varieties on yield, the influence of application of grey correlation analysis method, to 2013, 44 of correlation between yield and main agronomic characters of maize varieties were analyzed. The results showed that maize yield with the correlation degree according to the size of the sequence for ear thickness, leaf number, ear length, plant height and ear rows. Among them, the biggest influence of the main character is a rough ear leaf number and spike length and plant height, the second is the plant height, grain of relatively center, in contrast, ear position, bald tip for seed yield and yield of minimal impact