In order to explore the utility value of the much grains per spike of the wheat-Agropyron cristatum derivatives 3228 in wheat breeding, 3228 and its hybrids F1 derived from the crossing between 3228 and one of the five main cultivars from Huanghuai winter wheat area were planted in Beijing, Shanxi,and Sichuan, respectively. The main yield traits of the parents and their F1 were analyzed for their dominant and additive effects by MINQUE(1) approaches and AD models. The results indicated that the main yield traits had high siginificance in the additive variance ratio, and ordinary broad sense heritability accounted for the large proportion of the yield traits inheritance. Meanwhile, the additive effects of all the yield traits were interacted by environment. On the emphasis, Grains per spike of wheat-Agropyron cristatum derivatives 3228 has high siginificance in additive and dominant effects , the same as spike length and spikelets number in additive effect, which suggested 3228 would play an important role in increasing grains number per spike in the wheat yield traits improvement.