利用单交、回交及三交三种组合方式研究普通小麦产量及品质性状的遗传变异，结果表明，单株产量和籽粒蛋白质含量、干、湿面筋含量和S．D．S沉淀值在回交群体中的遗传变异与轮回亲本有关，在三交群体中的遗传变异与第三亲本有关。用高值系本回交和用品质比较好的亲本作第三亲本进行三交，后代可能分离出更多的品质好的个体，这对选择比较有利。 The genetic variation of yield and quality traits of common wheat was studied by three combinations of single cross, backcross and triple cross. The results showed that single plant yield, grain protein content, dry and wet gluten content, D. The genetic variation of S sediment value in the backcross population is related to the recurrent parent, and the genetic variation in the three cross population is related to the third parent. The high value of the backcross and the use of better quality parents as the third parent for three cross, the offspring may be isolated more good quality individuals, which is more favorable choice.