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本文利用一个双列杂交组的两个播种期试验,探讨了播种期对籽粒大小及其生长特性的表型值、配合力均方、配合力效应值相对大小以及籽粒大小与其生长特性的配合力效应相关程度的影响等问题。结果表明:在考察的十个性状中,八个性状的表型值在播期间存在着极显著的差异。只有一个性状的一般配合力均方和两个性状的特殊配合力均方在播期间的异质程度达到显著或极显著平准。八个性状的一般配合力效应相对大小和五个性状的特殊配合力效应相对大小在播期间的表现是基本一致的。籽粒大小与其生长特性的一般配合力效应相关和特殊配合力效应相关在播期间的差异均不显著。
In this paper, two sowing dates were used to study the effects of sowing date on grain size and its growth characteristics, such as phenotypic value, mean square combining ability, relative size of combining ability, and the combining ability of grain size and its growth traits The impact of the degree of effect and other issues. The results showed that among the ten traits investigated, the phenotypic values of eight traits were significantly different during sowing. The heterogeneity of general combining ability of one trait and that of special combining ability of the two traits reached significant or very significant level during the period of sowing. The relative size of the general combining ability effect of eight traits and the relative size of the special combining ability effect of the five traits were basically the same during the sowing period. The correlation between grain size and its general combining ability and its combining ability with its combining ability was not significant during the sowing time.