Fig 3. Percentage fungal colonization of blueberry rhizodermal cells in Experiment 2.

Blueberry seedlings were inoculated by 8 PAC species, 2 species related to PAC and Rhizoscyphus ericae as a positive control, two strains per each species. Blueberry seedlings were grown in a peat-based substrate for 3.5 months under in vitro conditions. The presented data are means of 6 replicates ± standard error of mean. Different letters above the columns indicate significant differences according to the non-parametric Kruskal-Wallis test followed by the multiple-comparison z-value test.