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Filtering by: Subject Western larch -- Testing Remove constraint Subject: Western larch -- Testing Decade 2000-2009 Remove constraint Decade: 2000-2009

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  • Effect of plant date on subsequent seedling field performance

    Creator:
    Taylor, Michael Monroe
    Abstract:
    Douglas-fir (Psudotsuga menziesii (Mirb.) Franco) seedlings were outplanted on eight dates (every three weeks from mid-August 2005 through mid-January 2006). On each plant date, seedlings from a conventional dormancy (CONV) induction treatment, including moisture and nutrient stress, and a shortened daylength (SD) treatment were outplanted on three western Oregon sites...
    Resource Type:
    Masters Thesis
    Full Text:
    WESTERN LARCH SEEDLINGS ON THE EAST SIDE OF THE CASCADE MOUNTAINS IN WASHINGTON ............ 96 3.1

  • Seedling response to vegetation management in northeastern Oregon

    Creator:
    Lindsay, Amanda A.
    Abstract:
    Northeastern Oregon geology and climate provides moderately productive conditions for forest management and timber production. Although site preparation and planting are commonly used silvicultural practices, little research exists on the efficacy of specific forest herbicides and responses of seedling survival and growth in this region. This research seeks to improve...
    Resource Type:
    Masters Thesis
    Full Text:
    chemical site preparation treatments and several responses: western larch (Larix occidentalis) and

  • Western larch resistance to Douglas-fir beetle attack

    Creator:
    Neal, Tiffany A.
    Abstract:
    Live western larch, Larix occidentalis Nutt., a tree species resistant to the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, produces the monoterpene 3-carene in higher concentrations compared to Douglas-fir, the preferred host of D. pseudotsugae (Reed et al. 1986). The inhibitory effects on attraction to aggregation pheromones and toxicity of 3-carene to...
    Resource Type:
    Masters Thesis
    Full Text:
    degree of Master of Science in Forest Science presented on January 15. 2004. Title: Western Larch

  • Post-harvest soil nitrate testing for manured cropping systems west of the Cascades

    Creator:
    Oregon State University. Extension Service, Sullivan, Dan M. (Dan Matthew), 1954-, and Cogger, Craig George, 1950-
    Abstract:
    This publication describes the use of post harvest soil nitrate testing as a tool for assessment of nitrogen (N) management in manured cropping systems west of the Cascade Mountains in Oregon, Washington, and south coastal British Columbia. The first section of this publication gives general information on the test and...
    Resource Type:
    Technical Report
    Full Text:
    Post-harvest Soil Nitrate Testing for Manured Cropping Systems