Study on promotion effects of different Arbuscular mycorrhizas fungi on rare tree species

The study was done to understand promotion effects of Arbuscular mycorrhizas fungi on growth of rare tree species Aquilaria sinensis，Dalbergia odorifera and Santalum album by comparing the advantages of selected strains to provide a theoretical basis for rare species growing. Under a greenhouse pot，three rare tree species were through root inoculation of AM fungi：Claroideoglomus etunicatu（CE） and Funneliformis mosseae（FM），and the promotion effects of the two strains of CE and FM fungi were studied. The results showed that the seedling growth of A. sinensis with inoculation of FM fungi were high，and the growth effect of D. odorifera seedling inoculated with CE fungi was good. Nevertheless，there was no significant difference on the growth and biomass of S. album seedlings by inoculation treatments. The morphological characteristics of root showed that the root length，root surface area and root volume of three rare tree species were promoted to different degrees after inoculation. Principal component analysis showed that three rare tree species could be each together as a class，which the growth factors and root factors were various sensitive.