Fig. 3
Net photosynthetic rate (Pn) (a), stomatal conductance (gs) (b), transpiration rate (c), and intercellular CO2 concentration (d) of S. salsa plants grown in sand in medium containing 0 and 200 mM NaCl at the beginning of the reproductive growth stage (103 DAS). Values are presented as the means ± SD of 15 replicates. Different letters in the figure indicate a significant difference at P < 0.05 according to Duncan’s test