Figure 5.

Initial fluorescence—F₀ (A), variable fluorescence—Fv (B), quantum efficiency of photosystem II—Fv/Fm (C), and maximum fluorescence—Fm (D) of sour passion fruit cultivated under irrigation with water of different levels of electrical conductivity (ECw), and Fm as a function of ascorbic acid concentrations (E), at 150 days after transplanting. Means followed by the same letter did not differ statistically from each other according to the Tukey test (p ≤ 0.05). The error bars represent standard error (n = 3).