Comparative effects of four mycorrhizal fungi on loblolly pine seedlings growing in a greenhouse in a Piedmont soil |
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Authors: | V L Ford J L Torbert Jr J A Burger O K Miller |
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Institution: | (1) University of Arkansas Cooperative Extension Service, 71801 Hope, AR, USA;(2) School of Forestry and Wildlife Resources, Virginia Polytechnic Institute and State University, 24061 Blacksburg, VA, USA;(3) Biology Department, Virginia Polytechnic Institute and State University, 24061 Blacksburg, VA, USA |
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Abstract: | Summary A greenhouse study was conducted to evaluate the effect of ectomycorrhizae on loblolly pine (Pinus taeda L.) growing in a Piedmont soil. Pine seedlings were inoculated with one of four species of fungi (Scleroderma aurantium, Pisolithus tinctorius, Thelophora terrestris, andRhizopogon roseolus). The seedlings were grown in pots containing a Cecil sandy clay loam amended to create a gradient of extractable P ranging from 5.9 to 52.5 g/g. After ten months, all colonized seedlings were significantly larger than control seedlings. However, of the four fungi,Scleroderma aurantium mediated a far superior shoot growth response to increasing levels of soil P; the seedlings were significantly larger than those colonized by any other fungus and also had the largest root systems and greatest degree of mycorrhizal colonization. |
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Keywords: | Cecil soil type Phosphorus Pinus taeda Scleroderma aurantium |
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