Colonization, root fresh weight and shoot dry weight of birch seedlings inoculated by two strains of A. macrosclerotiorum, one strain of A. applanata and one strain of P. involutus as a positive EcM control fungus in Experiment 3.

Plants were cultivated in a peat-agar medium in in vitro conditions for 6 months. Concentration of CO2 in the microcosms was measured three days prior harvest. The presented data are means of 6 replicates ± SE. Different letters indicate significant differences according to the non-parametrical Kruscal-Wallis test followed by a multiple-comparison z-value test.Colonization, root fresh weight and shoot dry weight of birch seedlings inoculated by two strains of A. macrosclerotiorum, one strain of A. applanata and one strain of P. involutus as a positive EcM control fungus in Experiment 3.