Figure 2.

Internal CO₂ concentration—Ci (A), stomatal conductance—gs (B), transpiration—E (C) and CO₂ assimilation rate—A (D) of sour passion fruit as a function of the interaction between the electrical conductivity of irrigation water (ECw) and salicylic acid concentrations, at 180 days after transplanting. X and Y-concentration of salicylic acid and ECw, respectively, * and ** significant at p ≤ 0.05 and ≤0.01, respectively.