【摘要】 本文以毛白杨6个无性系和4个杂种无性系为材料,对比研究了不同无性系光合速率与温度、光照的关系,光呼吸速率,光合速率的季节变化及叶片发育过程中光合能力的变化.探讨了光合速率与苗木生长的关系.更多还原

【Abstract】 In the experiment, with six clones and four hybrid clones of Populus tonmtosa as materials , the relationship between photosynthesis and light intensity, temperature, the photo-respiratory rates, the seasonal variation patterns of net photosynthetic rate and the variations of net photosynthetic rate with leaf development were studied. The relationship between net photosynthetic rate and seedling growth was also analyzed.更多还原