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. 2019 Dec 16;8(12):611. doi: 10.3390/plants8120611

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© 2019 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 different water-deficit stress (100% water capacity, 75% water capacity and 50% water capacity) on activities of antioxidant enzymes in milk thistle at 6, 12, and 18 weeks after planting (WAP): (A) catalase (CAT), (B) superoxide dismutase (SOD), (C) ascorbate peroxidase (APX), (D) peroxidase (POD), (E) glutathione reductase (GR), and (F) dehydroascorbate reductase (DHAR). Means ± SDs, n = 3 from three independent experiments. Different letters above bars within treatment groups are significantly different (p < 0.05).