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. 2022 Jan 7;17(1):e0262140. doi: 10.1371/journal.pone.0262140

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© 2022 Zaheer 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 2 — Effect different levels of tannery wastewater on chlorophyll contents (A), carotenoid contents (B), stomatal conductance (C), transpiration rate (D), net photosynthesis (E) and water use efficiency (F) under the application of Zn and Fe-lys on B. napus. Values are demonstrated as means of three replicates along with standard deviation (SD; n = 3). One-way ANOVA was performed and means differences were tested by HSD (P < 0.05). Different lowercase letters on the error bars indicate significant difference between the treatments. Different levels of tannery wastewater used are as follow: 0 (without irrigation with wastewater), 33 (33% irrigation with wastewater), 66 (66% irrigation with wastewater) and 100 (100% irrigation with wastewater).