Figure 2.

Potential Photosynthesis in Response to Drought.

(A) A/C_i curves were performed under saturating light conditions of 1000 µmol m⁻² s⁻¹ at six selected time points throughout the drying period, and potential photosynthesis was calculated, including light and [CO₂]-saturated net CO₂ assimilation (A_max), maximum rate of RuBP regeneration (J_max), and maximum rate of carboxylation (V_Cmax).

(B) Maximum and operating quantum efficiencies of photosystem II (Fv/Fm, Fq′/Fm′, and Fv′/Fm′). The data represent the mean (n = 3; ±se).