Acorn mass and seedling growth in Quercus rubra in response to elevated CO2

摘要: . In order to explore whether seed size affects plant response elevated CO2, plants grown from red oak (Quercus rubra L.) acorns were studied for differences in their first year CO2 concentrations of 350 and 700 μl/l. Overall, at final harvest, total biomass 47 % larger than that ambient CO2. There significant interactions between treatments initial acorn mass biomass, as well root, leaf, stem biomass. Although increased with increasing both high plants, exhibited a greater increase indicated by steeper slope plants. However, levels did not affect partitioning traits, such root/shoot ratio, stem, root weight ratios, leaf area ratio. These results suggest variation or can cause intraspecific