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Efficiency of grass pea leaf and stem photosynthesis under salinity: (a) light compensation point (L), net photosynthesis (Pn), stomatal conductance (Gs), and transpiration (E) of leaves and stems at 100 μmol quanta·m−2·s−1; (b) leaf and stem photosynthesis efficiency; different letters—statistically significant differences within each organ (leaf-uppercase, stem-lowercase) at p ≤ 0.05; (n = 3).
