Phosphorus relations of roots and mycorrhizas of Rhododendron maximum L. in the southern Appalachians, North Carolina

摘要: The mycorrhizal associations of Rhododendron maximum in the southern Appalachian mountains were studied relation to supply and demand phosphate at three altitudes. A variety are described together with ability differing types produce phosphatase enzyme, which was inversely related availability inorganic determined by a root bioassay, as Ectomycorrhizal shown have higher production potential than other mycorrhizas. different altitudes is turnover organic matter fixation capacity mineral soil. It speculated that R. associate range associates likely improve species' fitness enhance its competitive ability.