摘要：Seedlings of Potamogeton crispus were grown under condition of elevated ( 1000 μL·L −1 ) and ambient ( 380 μL·L −1 ) concentration of carbon dioxide [CO 2 ] for 68 days. Relative growth rate in elevated [CO 2 ] was higher than in ambient [CO 2 ] but decreased with time during the experimental period. However, allometric analysis with total plant weight as coveriate showed that biomass allocation and morphology were unaffected by elevated [CO 2 ] but were plant size dependent. We can conclude that allometric growth patterns of P. crispus are under strong genetic control, rather than environmental CO 2 control.
