【摘要】 <正> 玉米原产热带,是一种喜温的禾本科C₄作物。具有广泛的适应性。但由于它对温度条件要求较高,所以在温带地区生长的玉米,在生长期内受到持续低温的影响,就会造成大幅度的减产。为此,许多学者从气象、生态等不同角度讨论了温度对玉米生长更多还原

【Abstract】 Using experimental data of pot maize in the artificial control growing box under natural light, relationship between temperature and leaf photosynthesis of maize during the nutrient growing period was studied. A conclusion was reached that the relationship shows positive correlation under strong light and suitable temperature. For example, when the flux density of photosynthetic effective radjation is 0.4 cal/cm². min. the leaf photosynthesis rate will be 68 mg CO₂/dm²/hour at 32.5℃, 52.5 at 23.6℃and 39.3 at 18.7℃. The after effect of temperature on leaf photosynthesis was also observed.更多还原