采用NCII设计,配成8个组合,选择高产或高脂肪的7个大豆亲本。试验结果表明,F2代脂肪含量的变异大小与双亲脂肪含量的差异有关,双亲的差异越大,F2代脂肪含量的变异程度也越大。双亲脂肪含量均高,且双亲熟期差异较大,F2代出现高脂肪材料的几率高。F2代脂肪含量与父本的脂肪含量呈一定的正相关,但不显著;与母本脂肪含量及中亲值呈极显著的正相关。 Using NCII design, dubbed the eight combinations, choose high yield or high fat seven soybean parents. The results showed that the variation of fat content in F2 generation was related to the difference of fat content of parents. The greater the difference of parents, the greater the variation of fat content in F2 generation. Parents fat content are high, and the difference between parents mature, F2 generation of high-fat material is high. There was a positive correlation between the fat content of F2 generation and the fat content of male parent, but not significant. There was a significant positive correlation between the fat content of F2 generation and the parental fat content.