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. 2021 Mar 22;16(3):e0248778. doi: 10.1371/journal.pone.0248778

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© 2021 Pejam et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 5 — The BZnO and ZnONP-mediated variations in diverse important physiological traits, including the concentrations of Chla [a], Chlb [b], carotenoids [c], the activity of nitrate reductase enzyme [d], proline content [e] soluble phenols [f], PAL activity [g], catalase activity [h], and peroxidase activity [i]; Different letters on top of columns refer to statistically significant differences according to Tukey’s multiple comparisons test. ns: non-significant; *: 0.01<p≤0.05; **: 0.001<p≤0.01; ***: 0.0001<p≤0.001; ****: p≤0.0001. The p-value levels for comparing the mean of each group vs the control group are displayed by the asterisk on each column. Also, an asterisk [*] on the drawn lines presents the p-value levels for comparison between the BZnO and ZnONP groups.