Fig. 5.

Leaf gas exchange variables and the logistic function fitting their relative responses to salinity, a) Net photosynthesis, b) Transpiration and c) Conductance. Each point represents the mean value of three experiments and two dates of measurement for Experiments 1, 2 and 3 and field experiment 4. Error bars represent variability across replicates (4–6 plants), experiments (Experiment 1 and 2, Experiment 3 and Experiment 4) and time of measurements (7, 14, 21 d after start of salinity treatment), together with ± standard error. The lines were fitted curves to response patterns for each genotype.