采用区域试验方法研究了光温条件对高产夏玉米产量及产量性状的影响。结果表明,同一播期穗粒数以临淄点最高,千粒重和产量由西往东依次递减。穗粒数和产量随播期延迟而降低。生育期间的积温与产量性状呈极显著正相关。开花至成熟阶段的日平均温差与千粒重及产量呈极显著负相关。高产夏玉米全生育期需积温2530℃,日照700小时;开花至成熟阶段需积温1150℃,日照330小时。 The effects of light and temperature on the yield and yield characters of high-yield summer maize were studied using regional experiments. The results showed that the number of spikelets in the same sowing date was the highest in Linzi point, the decrease of 1000-grain weight and yield were from west to east. Spike grain number and yield decreased with sowing delay. The accumulated temperature during the growth period was significantly and positively correlated with the yield traits. The average daily temperature difference from flowering to maturity was significantly and negatively correlated with 1000-grain weight and yield. High-yielding summer maize growth period required accumulated temperature of 2530 ℃, sunshine 700 hours; flowering to mature stage temperature required 1150 ℃, sunshine 330 hours.