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本文研究了单交F2代、回交和三交F1代群体植株品质性状与亲本的相关性及杂种后代的分离与分布，结果表明：（1）在F2代，籽粒蛋白质、干、湿面筋含量和S．D．S沉淀值与高亲值、低亲值和中亲值呈显著或极显著正相关，而在回交F1代，上述籽粒品质性状与轮回亲本也呈正相关。在三交F1代．上述各品质性状与第三亲本的正相关系数比较大，说明欲在后代中出现较多的品质性状比较好的个体，亲本的品质应比较好，在三交组合中，尤其应注意第三亲本的选择；（2）在回交F1代群体，各品质性状的分布偏向于回交系本，在三交群体中则偏向于第三亲本。
In this study, we studied the correlation between plant quality traits and the parents and the segregation and distribution of hybrid offspring in F2 generation, backcross and crossbred F1 generation. The results showed that: (1) In F2 generation, grain protein, dry and wet gluten content And S. D. The sedimentation value of S was significantly or very significantly positively correlated with high, low and medium progeny, but in the F1 generation of backcross, the above mentioned grain quality traits were also positively correlated with the reincarnated parents. In the three cross F1 generation. The positive correlation coefficient between the above quality traits and the third parent is relatively large, indicating that there are many individuals with better quality traits in future generations. The quality of the parents should be relatively good. In particular, pay attention to the third parents (2) In the F1 generation population backcrossing, the distribution of each quality trait tended to be the backcross family, while in the crossbreed population it tended to the third parent.