Figure 2.

Evolution of (a,e) photosynthetic rate (A), (b,f) transpiration rate (E), (c,g) stomatal conductance (g_s), and (d,h) intrinsic water use efficiency (WUE_i) in leaves of pepper plants of the commercial variety “Gacela F1” either non-grafted (G) or grafted onto the commercial rootstocks, Creonte (G/C), Atlante (G/A), and Terrano (T/A), and cultivated under control (0 mM NaCl) and salinity (35 mM NaCl) conditions. Line points show the means of five plants ± standard error. Different capital letters indicate significant differences due to the salt treatment while different small letters show significant differences among graft combinations for each time-point according to Tukey’s test (p ≤ 0.05).