春小麦品种结实小穗数和穗粒数的配合力分析

Analysis of combining ability for grain number per spike and fruit number per small spike of eight spring wheat genotypes

通过双列杂交方式,对8个春小麦品种的结实小穗数和穗粒数进行一般配合力和特殊配合力效应分析.结果表明:J678和J679的一般配合力较高,与其他亲本品种一般配合力效应间差异均达极显著水平;J678与J680,农666与J659的特殊配合力较高,与其他杂交组合特殊配合力效应间差异达显著或极显著水平.

The diallel cross was used to analyze GCA and SCA effects on grain number per spike and fruit number per small spike of eight spring wheat genotypes. The results showed that the GCA effects of J678, J679 were higher, and the differences of GCA effects between J678 and others was significant. The SCA effects of grain number per spike for J678, J680 and nong666, J659 were also higher than that of others.