长江下游地区由于小麦生育期间雨量过多,日照不足,湿害病虫等自然灾害发生严重,年际之间小麦粒重高低的差异很大,这是造成本区小麦产量不稳的主要因素,也是限制小麦再高产的重要障碍.针对这一问题,我们在前几年小麦高产栽培技术及原理研究的基础上,从1981～1983年进行了小麦籽粒形成的机理与增重调节技术的研究 In the lower reaches of the Yangtze River, natural disasters such as excessive rainfall, lack of sunshine, wet pests and diseases and pests and other natural disasters occur seriously during the wheat growing period, and grain weight varies greatly between years. This is the main factor causing the instability of wheat production in this region, Is also an important obstacle to limit the yield of wheat.To solve this problem, based on the previous years of high-yielding wheat cultivation techniques and principles of research, from 1981 to 1983 carried out the mechanism of wheat seed formation and weight gain regulation technology