抄録
The effect of growth under elevated CO2 on the capacity of photosynthesis with a single leaf and a whole plant was investigated with a radish cultivar of White Cherish. The plants were grown under ambient (ca. 400 &mumol mol-1) or elevated CO2 (ca. 750 &mumol mol-1). The rates of photosynthesis per leaf area with a whole plant and a single leaf of various aged plants (15 to 26 days after planting) were measured under ambient and elevated CO2. The rates of photosynthesis were increased by 20-28% by elevated CO2. There was no effect of growth under elevated CO2 on the rate of photosynthesis clearly indicating no downward acclimation of photosynthesis to elevated CO2. Elevated CO2 increased dry weight accumulation by more than 27%. The effect of elevated CO2 on other growth characteristics will be also shown.
