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. 2020 Sep 4;9(9):1147. doi: 10.3390/plants9091147

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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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Content of free amino acids (AAs): (a) total AAs; (b) Proline—Pro; (c) aspartate—Asp; (d) glutamate—Glu; (e) glutamine—Gln; (f) Asparagine—Asn; (g) serine—Ser; (h) glycine—Gly; (i) Gly/Ser ratio; in the leaves of WT (white bars) and flacca (patterned bars) genotypes subjected to six day water deficit (D) period followed by a six day period of re-watering (R). Respective controls corresponding to water deficit condition (C_D) and re-watering (C_R) are presented. Values are presented as means ±SE (n = 4). Different letters denote significant differences between means according to Tukey HSD post hoc test p ≤ 0.05. Small letters represent the differences in means of drought treatment, while capital letters represent re-watering treatment.