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  1. Fusarium species associated with rhizosphere soil and diseased roots of eastern white pine seedlings and associated nursery soil

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    Author(s): Cynthia M. Ocamb; Jennifer Juzwik
    Date: 1995
    Source: Canadian Journal of Plant Pathology 17:325-330
    Publication Series: Scientific Journal (JRNL)
    Station: North Central Research Station
    PDF: View PDF  (699.43 KB)

    Description

    Fusarium species isolated from necrotic roots of eastern white pine (Pinus strobus) seedlings in two nurseries included F. acuminatum, F. equiseti, F. oxysporum, F. oxysporum var. redolens, F. proliferatum, F. sambucinum, F. solani, and F. sporotrichioides. In addition, all but F. sambucinum were isolated from the rhizosphere; all, in addition to F. graminearum, were also isolated from nonrhizosphere soil. Fusarium oxysporum, F. oxysporum var. redolens, and F. proliferatum were the most prevalent taxa in roots and nonrhizosphere soil. These three taxa plus F. solani predominated in rhizosphere soil. Species prevalence differed by site and date of collection, e.g. F. proliferatum was present at only one site. At least seven species of Fusarium were associated with seedling root rot and their prevalence differed according to site and time of year.

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    Citation

    Ocamb, Cynthia M.; Juzwik, Jennifer. 1995. Fusarium species associated with rhizosphere soil and diseased roots of eastern white pine seedlings and associated nursery soil. Canadian Journal of Plant Pathology 17:325-330

    Keywords

    F. oxysporum, F. proliferatum, F. solani, Pinus strobus, root rot

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