【摘要】 为了更好地发展山西省的玉米生产,根据省内复杂的地形和多变的气候,将其分为不同的种植区域。对参加区试的各区域中增产的品种或增产前5名品种的生育期、株高、穗位高、穗长、穗粗、秃尖长、穗行数、行粒数、百粒质量和出籽率等性状与产量进行了相关关系的研究,结果表明,各区域中玉米的特征特性与产量的相关关系是不一样的,只有针对不同区域玉米对株高、穗位高、穗长、行粒数和百粒质量等特征特性要求的不同,进行差异化品种选育,才能有效地提高该区域农业资源的利用效率,从而提高玉米单位面积的产量。更多还原

【Abstract】 To better develop maize production in Shanxi,it is divided into different planting areas according to the complex topography and changeful climate in Shanxi.We studied the correlation between growth period,plant height,ear height,ear length,ear thickness,bald tip length,rows of each ear,grain number per row,hundred-grain weight,rate of seed,and production in these varieties which production was more than check varieties or production of 5 varieties was most and more than check varieties in testing varieties in different ecological areas.The results showed that the correlations between the characteristics and yield was not the same in the different areas.It could effectively improve the utilization of agricultural resources and raise the per unit yield to breed different varieties according to different requirements of maize characteristics in different ecological areas.更多还原