通过对穗部性状与产量通径分析,表明穗部性状对产量的贡献是由本身的直接效应和通过其他性状间接效应来实现的,是综合作用的结果,性状间存在互变规律性,因此在选择这些性状时必须考虑性状间的相互关系,并且充分利用。就本试验结果而言,在构成玉米产量诸因素中,百粒重、穗行数、行粒数、穗长是影响玉米产量高低的决定性因素,4因素与产量有较大的相关系数,所以在选择时应注重对该4因素的选择,同时在此基础上还应增加穗粗,提高出籽率,并且协调好穗行数与出籽率、轴粗与出籽率等相互制约关系,有望选出高产杂交种。%Yield and Ear Characters Correlation and path analysis showed that panicle traits contributed to the production by its own direct effect and indirect effects through other traits to achieve, is the combined result, the existence of Traits Exchange Rule , therefore the selection of these traits must be considered when the relationship between traits, and make full use of. The results of this experiment, the maize yield in the form of various factors, kernel weight, rows per ear, kernels per row, ear length influenced the yield level of the decisive factors, four factors and yield a larger correlation coefficient, so in the choice of the four factors should focus on the choice, should on this basis also increased ear width, increase the seed rate, and coordinate rows per ear and out the seed rate, axis coarse and the seed rate of correlation Hybrids are expected to be elected on.
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