以春小麦不同品质类型为材料，研究子粒蛋白质和干物质积累规律。结果表明，春小麦灌浆期子粒蛋白质百分含量总的趋势均呈“Ｖ”型变化。但不同品质类型存在差异。高蛋白类型灌浆前期蛋白质含量下降缓慢，曲线波动小，高产类型则相反，高产高蛋白类型虽前期下降快，但后期回升速度也快，最终有较高的蛋白质含量。粒重在整个灌浆过程中均呈上升趋势，并在接近成熟时趋于稳定。等量氮肥分期施用，生育前期施氮有利于产量的形成，开花期叶面喷氮，在提高蛋白质含量的同时具有增加粒重的双重作用。不同品质类型小麦光合产物的生产和分配方向不同，高产高蛋白品种光合能力强，光合产物多，能够兼顾产量和蛋白质的同时增加。后期保持高光合速率和叶面积持续过程是高产、高蛋白类型的重要生理特性。 With different types of spring wheat as materials, we studied the law of grain protein and dry matter accumulation. The results showed that the general trend of the percentage of grain protein in grain filling stage was “V”. However, different quality types are different. The content of protein in early stage of high protein decreased slowly, the curve fluctuated little while the type of high yield was opposite. Although the high yield and high protein type decreased rapidly in the early stage, the protein increased rapidly in the late stage and finally had higher protein content. Grain weight increased throughout the grain filling process and stabilized when approached to maturity. The same amount of nitrogen fertilizer applied in stages of early growth of nitrogen is conducive to the formation of yield, flowering foliar spray nitrogen, while increasing the protein content with a dual role in increasing grain weight. Different types and types of wheat photosynthate production and distribution of different directions, high yield and high protein varieties photosynthetic ability, photosynthetic products, both yield and protein at the same time increase. Maintaining high photosynthetic rate and continuous leaf area during the later stage are important physiological characteristics of high yield and high protein type.