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Filtering by: Subject Douglas fir -- Fertilizers Remove constraint Subject: Douglas fir -- Fertilizers Advisor Meinzer, Frederick C. Remove constraint Advisor: Meinzer, Frederick C. Decade 2010-2019 Remove constraint Decade: 2010-2019

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  • Stem sapwood water transport and storage strategies in three conifers from contrasting climates

    Creator:
    Barnard, David M.
    Abstract:
    The state of Oregon has two distinct climate types bisected by the crest of the Cascade Mountain range. The western side of the Cascades experiences high levels of precipitation and mild temperatures due to the maritime influence of the Pacific Ocean, while the eastern side lies in the rain shadow...
    Resource Type:
    Masters Thesis
    Full Text:
    -fir (Pseudostsuga menziesii), ponderosa pine (Pinus ponderosa) and the shore pine and lodgepole

  • Approaches for Characterizing Plant Physiological Responses to Environmental Stress

    Creator:
    Marias, Danielle E.
    Abstract:
    It is uncertain how predicted changes in climate will impact vegetation responses and plant species’ distributions because the physiological mechanisms underlying thresholds for damage are not well understood, and responses to stress vary by functional type and developmental stage. Thus, it is crucial to investigate physiological responses to heat and...
    Resource Type:
    Dissertation
    Full Text:
    ................................................................................................... 93 4. Thermotolerance and heat stress responses of Douglas-fir and ponderosa pine seedling

  • Impacts of Swiss needle cast on Douglas-fir tree-ring stable isotopes and tree carbohydrate reserves

    Creator:
    Saffell, Brandy J.
    Abstract:
    Understanding the mechanisms of disease in forest pathology is a critical component to learning how to most efficiently manage tree diseases like Swiss needle cast (SNC). SNC is an economically important, fungal disease of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) that is prevalent in coastal areas of the Pacific Northwest. This...
    Resource Type:
    Masters Thesis
    Full Text:
    Impacts of Swiss Needle Cast on Douglas-fir Tree-ring Stable