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Inoculation of Pinus Caribaea with Ectomycorrhizal Fungi in Puerto Rico

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Pure cultures of Corticium bicolor, Cenococcum graniforme, Rhizopogon roseolus, and Suillus cothurnatus were transported to Puerto Rico in a peat moss-vermiculite medium. Nonmycorrhizal seedlings of Pinus caribaea were inoculated with pure culture or with soil from a pine nursery. Additional non-mycorrhizal seedlings were fertilized. In field and nursery plantings, mycorrhizal seedlings grew better than nonmycorrhizal seedlings. Fertilizer applications did not offset stunting in nonmycorrhizal seedlings. Nonmycorrhizal roots apparently were not invaded by other organisms. Cenococcum graniforme did not colonize pine roots in Puerto Rico. Soil from plantations was very effective inoculum. Two nonsporulating fungi were isolated from previously established pine mycorrhizae, and one subsequently formed mycorrhizae in axenic culture. Forest Sci. 17:239-245.

Keywords: Caribbean pine; Mycorrhizae; fertilization

Document Type: Journal Article

Affiliations: Principal Plant Physiologist, Pioneering Research Unit, USDA Forest Service, Beltsville, Md.

Publication date: June 1, 1971

More about this publication?
  • 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.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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