
Leaf respiration in darkness and in the light under pre-industrial, current and elevated atmospheric CO2 concentrations
Keywords: Anet, net photosynthetic CO2 assimilation; A300, rates of A at 300 μmol photons m-2 s-1; A1000, rates of A at 1000 μmol photons m-2 s-1; ci, intercellular CO2 concentration; DMC, dry matter content; FMA, fresh mass per unit leaf area; Γ*, CO2 compensation