Synthesis of Pisolithus Ectomycorrhizae on Pecan Seedlings in Fumigated Soil

摘要

Curtis variety of pecan (Carya iknoensis) seedlings were grown for 8 months in fumigated soil infested at sowing with mycelial inoculum of Pisolithus rincrorius. Pisolirhus ectomycorrhizae were formed on all inoculated seedlings and significantly improved their growth over control seedlings. inoculated and control seedlings also formed ectomycorrhizae with naturally occurring Thelephora terrestris which produced abundant fruit bodies on seedling stems; most were formed on control seedlings. The results showed that the techniques developed to form Pisolithus ectomycorrhizae on pine seedlings are also applicable to pecan seedlings except that inoculum should be incorporated 20 cm deep rather than IO cm, which is used for pine.