The results show that PC and WPC of spring wheat have an increased trend with postponement of planting time, PC and WPC of the wheat in late sowing stage have higher than those in normal sowing time.

• 试验表明：随着播期的推迟，春小麦蛋白质和湿面筋含量呈增加趋势，晚播的小麦蛋白质和湿面筋含量比正常播期的要高；