Fig. 6.
Effects of mycorrhizal fungi on the growth of D. officinale plants 49 days after inoculation. Bars show mean change in plant fresh weight (A) and in plant dry weight (B). Bars show standard errors (X ± SE n = 20 plants per fungi and n = 30 for controls). Mean values with the different letter are significantly different (ANOVA and means were compared by Duncan's multiple test at P ≤ 0.05 level).