Fig. 5.
Phosphorus a and nitrogen b concentrations in above ground leek biomass inoculated with 44 different AMF isolates and one non-mycorrhizal control. Data are reported as means (n = 6) and their standard errors. Significant differences between AMF isolates and the control treatment (bar and dashed horizontal line) are determined with Conover’s many-to-one test (p < 0.05) after the non-parametric Kruskal–Wallis test and are indicated by asterisks