采用包括基因型与环境互作的双子叶作物种子遗传模型，分析了陆地棉５个亲本及其Ｆ１、Ｆ２棉子仁的４个营养品质性状（油分含量、油分指数、蛋白质含量和蛋白质指数）以及棉子的４个物理性状（籽指、容重、仁壳比和仁指）的３年实验资料．估算了棉仁营养品质性状及棉子物理性状的遗传效应的各项相关系数，并讨论了性状之间遗传相关性在棉花品质改良育种中的应用 The four seed quality traits (oil content, oil index, protein content and protein index) of five cotton cultivars and F1 and F2 cotton seed kernels were analyzed using a seed-genetic model of dicotyledonous crops including genotype and environment. And 3-year experimental data of 4 physical traits (seed index, bulk density, kernel ratio and kernel index) of cottonseed. The correlation coefficients of the nutritional quality traits of cotton kernels and the genetic effects of cotton physical traits were estimated, and the application of the genetic correlations between traits in improved cotton quality breeding