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    PYrenophora triticirepentis as a component of the fungal flora of winter wheat seed in New York

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    Date
    1994
    Author
    Schilder, A.M.
    Bergstrom, G.C.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    The occurrence of P. tritici-repentis among the fungal flora of soft white winter wheat seed in New York, USA, was assessed during 1990-91. The fungus was recovered from 54% of the seed lots in 1990 and from 36% of the seed lots in 1991, infecting an av. of 2.1 and 0.6% of the seeds, respectively. Seed infection by fungal pathogens was generally low in 1991. Alternaria spp. were the fungi most commonly associated with soft white winter wheat seed in both years. Stagonospora [Leptosphaeria] nodorum, Epicoccum nigrum and various Fusarium spp. were also prevalent, particularly in 1990. Mycelium of P. tritici-repentis was detected by culturing and light microscopy in all layers of the pericarp of the wheat seed, but not in the seed coat or the embryo. Surface infestation of the seed by conidia and conidiophores was minimal.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5598
    IITA Subjects
    Plant Diseases; Grain Legumes; Plant Breeding
    Agrovoc Terms
    Pathogens; Wheat; Seeds; Embryos (Plant)
    Regions
    Acp; Africa; North America; West Africa
    Countries
    United States; Nigeria
    Collections
    • Journal and Journal Articles4835
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