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. 2018 Feb 21;13(2):e0193156. doi: 10.1371/journal.pone.0193156

Fig 13. The frequency of root meristematic cells of barley cv. ‘Sebastian’ at S-phase in control and Al-treated roots.

Fig 13

The error bars represent the standard deviations of the mean. The significant differences (P < 0.05) between the treated combinations and the controls (pH 4 and pH 6) within the same treatment day are indicated by a capital letter A (1-day treatment) or B (7-day treatment). The frequency of S-phase cells is not significantly different (P < 0.05) within the same treatment day for different pH.