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. 2020 Jul 6;9(7):854. doi: 10.3390/plants9070854

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Effects of salinity stress combined with exogenous melatonin on the activities of antioxidant enzymes in peanut seedlings after 6 h and 15 days. (A) Superoxide dismutase (SOD), (B) catalase (CAT), (C) glutathione reductase (GR), (D) peroxidase (APX), and (E) dehydroascorbate reductase (DHAR). Data are means ± SD (n = 3) from three independent experiments. The bars labelled with different letters are significantly different. The significant difference marked by different letters was calculated using the Student’s t-test and further analyzed with the Fisher LSD test, at p ≤ 0.05. The legend is as follows: Control: 0 NaCl + 0 MT, T1: 150 mM NaCl + 0 MT, T2: 150 mM NaCl + 50 μM MT, T3: 150 mM NaCl + 100 μM MT, T4: 150 mM NaCl + 150 μM MT.