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Conifer Associates and Mycorrhizal Syntheses of Some Pacific Northwest Suillus Species

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The relative frequency of occurrence of sporophores of various Suillus species, as determined in natural stands of certain conifers in northern Idaho, indicated possible mycorrhizal relationships among: S. cavipes and S. grevillei with Larix occidentalis; and S. granulatus, S. sibiricus, S. tomentosus vars. discolor and tomentosus with Pinus monticola. Seedlings of L. occidentalis, P. contorta, P. ponderosa, and Pseudotsuga menziesii were grown aseptically and inoculated with pure cultures of seven species and varieties of Suillus. Mycorrhizae were formed by S. brevipes, S. pallidiceps, and S. tomentosus var. tomentosus with P. contorta and P. ponderosa; S. tomentosus var. discolor with P. ponderosa; and S. grevillei with P. menziesii. Suillus grevillei stimulated dichotomous branching of short roots of P. ponderosa, but no mycorrhizal relationship was formed.

Document Type: Journal Article

Affiliations: Assistant Professor of Plant Pathology and Forestry, N. C. State Univ., Raleigh

Publication date: September 1, 1968

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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.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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