通过对３年冬种玉米分期播种资料的统计分析，探讨了冬种玉米产量及其性状与气候条件之间的定量关系。分析表明，热量不足是影响冬种玉米产量的主要气象因子，低温型灾害的出现对冬种玉米的产量产生不利影响；拔节—抽雄期是低温冷害影响冬玉米产量的关键期，另一个次关键期为抽雄—开花时段。 Through the statistical analysis of seeding data of winter maize staged in three years, the quantitative relationship between winter maize yield and its traits and climatic conditions was discussed. The analysis shows that the lack of heat is the main meteorological factor affecting the yield of winter maize. The appearance of low temperature disasters adversely affects the yield of winter maize. The jointing and tasseling stages are the key period affecting the yield of winter maize. Period for tasseling - flowering period.