Investigation of AM Fungi under Casuarina Plantations and Inoculating Experiment for Casuarina junghuhnian Seedlings

The 15 species belonging to 3 families, 5 genera of arbuscular mycorrhizal (AM) fungi were found in field survey under Casuarina plantations in southern China, of which there were 4 dominant species of AM fungi. In the 15 species, therer were 9 species of Glomus spp. which was 60% in the given total species, and there were 1 or 2 species of Acaullospora spp., Gigaspora spp, Scutellospora spp. and Sclerocytis spp. An inoculating experiment for Casuarina junghuhaniana seedlings was carried out in the glasshouse, with a complete randomized block design at 9 AM fungus and 1 control treatments. The results showed that AM fungi significantly improved seedling growth in height and diameter at 16 months old after inoculating, and there were differences between different AM fungus species or isolates. The isolates V9508, V9004, V9502, V9504, V9507 and V9503 are mor effective, seedlings heights icreased by 43.48% 84.78% and diameters increased by 40.00% 73.00%, compared with non inoculation treatment.