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. 2021 Apr 12;12:633221. doi: 10.3389/fpls.2021.633221

FIGURE 2.

FIGURE 2

PAL and PPO activity in the leaves of Sixing F1 and Jin12 F1 at different time points after inoculation with Podosphaera xanthii. (A) The PAL activity in the leaves of Sixing F1; (B) the PAL activity in the leaves of Jin12 F1; (C) the PPO activity in the leaves of Sixing F1; and (D) the PPO activity in the leaves of Jin12 F1. The line bars represent the standard errors of the means. Different letters denote significant difference at the P < 0.05 level by Duncan’s new multiple range test (n = 12). The treatments are detailed in the footnote of Table 2.