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Filtering by: Alternative title ssim Extension bulletin 141 Remove constraint Alternative title ssim: Extension bulletin 141 Academic Affiliation Botany and Plant Pathology Remove constraint Academic Affiliation: Botany and Plant Pathology Location Willamette Valley, Oregon, United States, (Hypsographic) Remove constraint Location: Willamette Valley, Oregon, United States, (Hypsographic)

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  • Landscape Genomics and Climatic Responses of Willamette Valley Alders

    Creator:
    Kral, George L.
    Abstract:
    The climate of the Pacific Northwest is in flux, and existing forest ecosystems are stressed and poised to shift in fundamental ways, with or without human intervention. This dissertation probes the nature of forest responses to environmental change through investigations of morphology and genetics of three species of alder co-occurring...
    Resource Type:
    Dissertation
    Full Text:
    ............................................................................................................................. 141 Chapter 6: Species declines at the southern margin of the Pacific temperate maritime forest

  • Diagnosis and Etiology of a Soilborne Disease Complex of Winter Squash (Cucurbita maxima) in the Willamette Valley, OR

    Creator:
    Rivedal, Hannah M.
    Abstract:
    Winter squash (Cucurbita maxima) grown in Oregon’s Willamette Valley for edible seed, frozen foods, and fresh markets is susceptible to an undiagnosed soilborne disease. Diseased squash fields exhibit symptoms of stunting, root and crown rot, vascular discoloration, and late-season wilt, which in extreme cases can lead to total crop failure....
    Resource Type:
    Dissertation
    Full Text:
    disease. Since the early 2000s, anecdotal reports from Extension agents, have indicated that winter