重点分析了小麦品种晋麦49号的丰产性、稳产性、基因效应及遗传背景，明确了晋麦49号在一般肥力情况下能获得高产，在高肥力情况下更能充分发挥其增产潜力，实现超高产的机理。对超高产育种中的几种产量结构模式和育种方法进行了探讨，认为株高在不同环境下的刚性度和稳定性，以及具有高光效的株型结构是超高产育种的关键。 This paper mainly analyzed the yield, stability, gene effect and genetic background of wheat variety Jinmai 49. It was clarified that Jinmai 49 could obtain high yield under the condition of general fertility and give full play to its potential yield in high fertility, Achieve ultra-high yield of the mechanism. Several yield structure patterns and breeding methods in super-high-yielding breeding were discussed. It is considered that the rigidity and stability of plant height in different environments and the plant type structure with high light efficiency are the keys to super-high-yielding breeding.