Figure 6.

Comparison of total antioxidant capacity of medium extracts from hairy root cultures of peanut cultivars Tifrunner, Hull (line 3), and Georgia Green at different concentrations. Antioxidant capacity was evaluated by the DPPH assay method. Values are the average of three independent experiments, each performed in technical triplicate. Error bar represents standard deviation. Statistical analysis was performed with two-way ANOVA with Tukey’s multiple-comparisons test. The asterisks above the connecting line represent a significant difference when compared to the total antioxidant activity among three cultivars (*, p < 0.033; **, p < 0.002; ***, p < 0.001; ****, p < 0.0001; ns, not significant).