以济南火烧头露仁等６个品种组成的双列杂交，对籽粒的蛋白质含量进行了杂种优势和配合力分析。结果表明：蛋白质含量在多数组合中为正向优势，各品种的蛋白质含量与杂种优势无明显相关，各品种的ｇｃａ有显著差异，且与亲本的表型值高度相关。ｓｃａ效应与杂种优势也明显相关。故在进行蛋白质含量育种时，可根据亲本表型值选配亲本，根据杂种优势进行组合的选择，以替代ｇｃａ和ｓｃａ的分析 The cross combinations of 6 varieties, such as Jinan fire dew head and Lu Ren, were used to analyze the heterosis and combining ability of the grain protein content. The results showed that the protein content was positive in most combinations, and the protein content of each variety had no significant correlation with heterosis. The gca of each variety was significantly different and was highly correlated with the phenotypic value of the parents. The sca effect is also significantly related to heterosis. Therefore, when carrying out protein content breeding, the parents can be selected according to the phenotypic values ​​of the parents, and the combinations can be selected according to the heterosis to replace the analysis of gca and sca