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Seedlings of Quercus velutina, Q. alba, and Q. robur were grown in containers inoculated with five isolates of Pisolithus tinctorius, three of Suillus granulatus, and one each of Suillus luteus, Thelephora terrestris, and Cenococcum geophilum. Each seedling received 75 ml of Hoagland's solution weekly. Colonization of lateral roots differed significantly among the isolates and among the oak species. Although not statistically significant in all instances, mycorrhizae increased foliar nutrient content in 80 percent of the measurements. Nutrient content of K, Ca, Mg, Fe, B, Mn, Zn, Cu, and Mo was influenced by the fungal symbiont associated with each oak species. Thelephora terrestris was the most effective organism in increasing nutrient uptake by the three oaks collectively; individually, S. granulatus 263 was most effective with Q. velutina, S. luteus with Q. alba, and C. geophilum with Q. robur. Differences in nutrient uptake by oaks inoculated with various ectomycorrhizal fungi emphasize the need for testing fungal ecotypes before selecting one for inoculation of container-grown seedlings. Forest Sci. 30:563-572.
Principal Silviculturist and Project Leader, North Central Forest Experiment Station, USDA Forest Service, Columbia, MO 65211
Publication date: September 1, 1984
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Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.