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. 2017 Feb 6;8:69. doi: 10.3389/fpls.2017.00069

FIGURE 4.

FIGURE 4

Influence of different drought stress levels on (A) ascorbic acid (AsA), (B) reduced glutathione (GSH), (C) dehydroascorbate (DHA), (D) oxidized glutathione (GSSG) in three maize hybrids. Small alphabetical letters above means denote the significant differences among treatment with in a maize hybrid at P ≤ 0.05. Capped bars above means represent ±SE of three replicates. Ck, control (100% FC); LD, low drought (80% FC); MRD, moderate drought (60% FC); and SD, severe drought (40% FC); FC, Field capacity.