Effects of four ectomycorrhizal species on controlling damping off and promoting the growth of Pinus tabulaeformis seedlings
四种外生菌根真菌对油松幼苗的抗猝倒病和促生作用

In order to screen ectomycorrhizal (ECM) fungi for antagonizing Rhizoctonia solani and improving the growth of Pinus tabulaeformis seedlings, 9 species of ECM fungi were inoculated to the roots of P. tabulaeformis seedlings under controlled conditions, and then colonization rates, control effects of inoculation on damping off of P. tabulaeformis, effects of inoculation on plant height and basal diameter of P. tabulaeformis were measured. The results indicated that, 4 species including Suillus tomentosus, Suillus laricinus, Amanita vaginata and Gomphidius viscidus could form mycorrhiza with P. tabulaeformis seedlings in greenhouse. A. vaginata was the best strain for controlling P. tabulaeformis damping off, and the control effect was 43%. A. vaginata and G. viscidus could significantly improve plant height of P. tabulaeformis seedlings.