Fig. 2

Leaf gas exchange analysis in tolerant (RB92579) and susceptible (SP80–3280) sugarcane plants under different water deficit regimes. a - Net CO₂ assimilation (A, μmol CO₂ m^− 2 s^− 1); b - stomatal conductance (Gs, mol H₂O m^− 2 s^− 1); C - transpiration (E, mmol H₂O m^− 2 s^− 1). Different upper case and lower letters indicate statistical differences between cultivars in each treatment and between water deficit treatments (control, moderate, severe and recovery) for each cultivar, respectively, according to Tukey test (P < 0.05). Values presented as mean ± SE (n = 3)