通过对小麦子粒灌浆及发育的研究分析，提出了子粒充实度的概念及计算公式，并据此对河南省小麦子粒灌浆模式进行了研究，结果表明，品种间的子粒充实度存在着显著差异，它可以较好地反映子粒生长潜力的发挥程度。河南省的高产小麦品种可以划分为四种灌浆模式：①高灌浆速度与短灌浆持续期相结合类型；②长灌浆持续期与早开花相结合类型；③长灌浆持续期与晚开花相结合类型；④低灌浆速度与长灌浆持续期相结合类型。其中，①②模式类型比较适合河南省的生态条件，子粒充实度较高。子粒充实度与子粒灌浆持续期、子粒灌浆完成期、开花期、起始生长势等密切相关 Based on the research and analysis of grain filling and development in wheat, the conception and calculation formula of grain fullness were put forward. Based on this, the grain filling model of wheat in Henan Province was studied. The results showed that there were significant differences in grain filling degree between cultivars, It can better reflect the development of grain growth potential. The high-yielding wheat varieties in Henan Province can be divided into four types of grouting patterns: ① the type of combination of high grouting speed and short grouting duration; ② the combination type of long grouting duration and early blossoming; ③ the combination type of long grouting duration and late blossoming ; ④ combination of low filling speed and long filling duration. Among them, ① ② the type of model is more suitable for the ecological conditions in Henan Province, higher grain fullness. Grain fullness is closely related to the duration of grain filling, grain filling completion, flowering, initial growth potential