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Filtering by: Subject Plants, Effect of poisons on Remove constraint Subject: Plants, Effect of poisons on Academic Affiliation Botany and Plant Pathology Remove constraint Academic Affiliation: Botany and Plant Pathology Subject Plants -- Effect of herbicides on -- Oregon -- Willamette River Valley Remove constraint Subject: Plants -- Effect of herbicides on -- Oregon -- Willamette River Valley

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  • Performance of Willamette Valley native plants following herbicide exposure

    Creator:
    Blakeley-Smith, Matthew R.
    Abstract:
    Prairies were once the dominant vegetation type in Oregon's Willamette Valley. Land use conversion, fire suppression, succession, and invasive species have reduced Willamette Valley prairies to less than 1% of their historical area. The remnant prairies that persist today are small in size and are highly fragmented. Marginal strips of...
    Resource Type:
    Masters Thesis
    Full Text:
    the effect of a toxin on plant growth. The ten crops species include tomato, cucumber, lettuce

  • Sweet corn decline syndrome in Oregon's Willamette Valley

    Creator:
    Hoinacki, Elisabeth V.
    Abstract:
    For the past several years vegetable growers in Oregon's Willamette Valley have experienced reduced yields in their sweet corn plantings. We conducted studies to 1) describe the symptomology and etiology of the disease, 2) test a root rot rating system we developed to evaluate factors in the disease syndrome, and...
    Resource Type:
    Dissertation
    Full Text:
    ) evaluate the effect of soil applied herbicides on severity of root rot. Plant sampling from commercial