Fig. 3.
Leaf stomatal conductance (gleaf, in cm s−1) in seedlings of Atriplex halimus issued from a coastal saline site (Monastir) or an inland semi-arid area (Sbikha) and exposed for 10 d to control nutrient solution or to nutrient solution containing 40 or 160 mm NaCl or 15 % PEG. Measurements were performed at 1100 h on a fully expanded leaf located at the middle part of the stem. Each value is the mean of 12 replicates and vertical bars are s.e. of the means. Values sharing a common letter are not significantly different at P < 0·05.