Figure 9.

A, Change of modeled A_lateral with different reductions in the effective D_c′ inside the leaves compared to the free air value. B, Change of modeled relative A_lateral/A_p for petunia with patch diameter assuming D_c′ = 20%. Modeled using parameters of A/C_i response curves measured in petunia at the three PPFD shown, in ambient CO₂ concentration of 360 μmol mol⁻¹, except for the curve shown in B with black symbols, where a preindustrial CO₂ of 280 μmol mol⁻¹, a 25% increase in conductance, and a 15% reduced leaf thickness was used.