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Inoculation of Nursery Seedbeds with Pisolithus Tinctorius Spores Mixed with Hydromulch Increases Ectomycorrhizae and Growth of Loblolly Pines

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Different methods of introducing basidiospores (4/5 oz. spores/100 linear ft. of nursery bed) of Pisolithus tinctorius into fumigated soil at Weyerhaeuser's nursery in Oklahoma were tested to determine their effectiveness in forming ectomycorrhizae on loblolly pine seedlings. Two of five methods proved significantly effective. Nearly three-fourths of seedlings treated with spores mixed in hydromulch and applied after sowing formed Pisolithus ectomycorrhizae. The result was 25 percent larger seedlings and 15 percent fewer culls. In plots where spores were dusted onto the soil at sowing, one-third of the seedlings formed Pisolithus ectomycorrhizae, resulting in 12 percent larger seedlings and 13 percent fewer culls.
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Document Type: Journal Article

Affiliations: Production Technology Manager, Weyerhaeuser Company, Hot Springs, Arkansas

Publication date: 1979-11-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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