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. 2017 Jun 13;8:1016. doi: 10.3389/fpls.2017.01016

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Copyright © 2017 Haworth, Catola, Marino, Brunetti, Michelozzi, Riggi, Avola, Cosentino, Loreto and Centritto.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Leaf gas exchange and simultaneous chlorophyll fluorescence parameters of Moroccan (gray) and Italian (white) A. donax ecotypes grown in the field under irrigated control (open) and rain-fed drought (hatched) conditions: (A) photosynthesis (P_N); (B) stomatal conductance (G_s); (C) internal sub-stomatal concentration of CO₂ (C_i); (D) the ratio of electron transport rate (ETR) to P_N, and; (E) respiration in the dark (R_N). Error bars indicate one standard error either side of the mean (n = 6). Letters indicate homogenous groups determined using a one-way ANOVA and LSD post hoc test.