【摘要】 试验以26个不同杂交种F1作为研究材料,测定其后代(S1)果穗单粒重和含油率,并对这两个重要性状进行相关分析,采用X2拟合优度检验和经验分布拟合优度检验对每个S杂交种S1(F2)子粒含油率分布的正态性进行了验证。结果表明,所有供试材料平均单粒重为0.29～0.45 g,变异系数为4.4%～19.4%,含油率为4.52%～10.50%,其后代相对变异程度较高,变异系数较大(11.02%～27.9%)。只有材料4053-2 S1子粒含油率分布,无论用哪种方法进行正态分布检验都符合正态分布,其它材料S1子粒含油率的分布不符合正态分布,含油率与单粒重呈极显著负相关。更多还原

【Abstract】 Twenty-six hybrid varieties(F1) were studied on kernel weight,kernel oil content and their relationship,and the normal probability distributions of S1 seed oil content in each variety were tested by chi-square tests and three empirical methods.The results showed that the average of kernel weight was from 0.29 g to 0.45 g,the range of coefficient variation(CV) was from 4.4 percent to 19.4 percent in these hybrids;the average oil content of kernel was from 4.52 percent to 10.5 percent in these hybrids,their variability was high,and the range of CV was from 11.02 percent to 27.9 percent;The S1 kernel oil content distribution of the only hybrid 4053-2,no matter what testing method was used,was fitted to the normal distribution,and the S1 kernel oil content distributions of the other hybrids were not fitted to the normal distributions;there were significant negative correlations between grain weight and grain oil content in all hybrids.更多还原