西南地区玉米杂交种主要生物性状分析

Analysis on Main Biological Characters of Maize Hybrid Strains in Southwest Region

对西南地区主要玉米杂交种植株性状、穗部性状和子粒性状进行了分析,初步总结出该区大多数玉米杂交种株高、穗位、叶片数、穗长、穗行数、穗粒数、出籽率和千粒重等数量性状的平均值、主要分布区间和变异系数,并对株型、子粒形状和颜色等典型质量性状进行了调查,为今后玉米科研、推广和利用提供了有一定参考价值的参数。

This paper analysed the characters of individual plant,ear height and grain of main maize hybrid strains planted in southwest region,preliminarily summarized average values,variances land their distributing range of quantitative characters of majority of maize hybrid strains in this area,including plant height,ear height,leaf number,ear length,grain line number per ear,grain number per ear,grain production rate and weight per thousand grains.Their typical qualitative characters such as plant pattern,grain shape and colour were also investigated.To a certain degree,this study provided valuable reference for maize research and commercial production carried out hereafter.