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. 2022 Jan 24;12:771992. doi: 10.3389/fpls.2021.771992

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Copyright © 2022 Marriboina, Sekhar, Subramanyam and Reddy.

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) and the copyright owner(s) 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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Effect of salinity stress on leaf photosynthetic performance of P. pinnata. Variations in (A) light-saturated net photosynthetic rate (A_sat) (μmol m^–2 s^–1), (B) stomatal conductance (g_s) (mol H₂O m^–2 s^–1), (C) transpiration rate (E) (mmol m^–2 s^–1), (D) instant water use efficiency (WUE_i) (mmol m^–2 s^–1), (E) intercellular CO₂ (C_i) (μmol m^–1), and (F) relative water content (RWC) in P. pinnata grown under control and salt treatment conditions. Error bars represent the mean ± SD (n = 4). Two-way analysis of variance (ANOVA) test was performed to measure P-values ns, not significant; *, P < 0.05; **, P < 0.01; and ***, P < 0.001.