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. 2020 Oct 23;11:516818. doi: 10.3389/fpls.2020.516818

FIGURE 6.

FIGURE 6

(A) Total soluble sugar content, (B) protein content, (C) peroxidase (POX) activity, and (D) polyphenol oxidase (PPO) activity in date palm shoots under two water regimes [75% field capacity (FC); open bars and 25% FC; filled bars] of the tested control treatments (non-amended and non-inoculated) and biofertilizers treatments [composts C1 or C2, arbuscular mycorrhizal fungi (exogenous AMF1 and native AMF2), and/or plant growth promoting rhizobacteria (PGPR) (B1 or B2)]. Data are mean ± SE of six biological replicates. Means followed by the same letters are not significantly different at P < 0.05 (Tukey’s HSD).