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Filtering by: Creator Stern, Robert K. Remove constraint Creator: Stern, Robert K. Academic Affiliation Botany and Plant Pathology Remove constraint Academic Affiliation: Botany and Plant Pathology Committee Member Breen, Patrick Remove constraint Committee Member: Breen, Patrick

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  • Invasion by trees into a grassy bald on Marys Peak, Oregon Coast Range

    Creator:
    Magee, Teresa K.
    Abstract:
    Grassy balds are meadows that occur on or near the summits of montane peaks and ridges. The sites on which balds are located generally fall within the climatic tolerance ranges of associated tree species. This study evaluates the stability of a forest-meadow transition zone of such a bald on Marys...
    Resource Type:
    Masters Thesis
    Full Text:
    Coast Range AN ABSTRACT OF THE THESIS OF Teresa K. Magee for the degree of Master of Science in

  • Biology and control of Fusarium spp. on Douglas-fir (Pseudotsuga menziesii)

    Creator:
    Hoefnagels, Mariëlle Henriette, 1965-
    Abstract:
    Fusarium spp. are among the most important pathogens of Douglas-fir (Pseudotsuga menziesii) seedlings in bareroot nurseries. Currently the most effective disease control method is soil fumigation with methyl bromide. As methyl bromide is phased out, however, other disease management strategies may become more important. We explored two alternative approaches to...
    Resource Type:
    Dissertation
    Full Text:
    Fusarium spp. on Douglas-fir (Pseudotsuga menziesii) Abstract approved: Robert G. Linderman Fusarium

  • Evolution and ecology of the Ceanothus-Frankia symbiosis

    Creator:
    Jeong, Soon-Chun
    Abstract:
    The evolutionary relationship between Frankia and actinorhizal plants was evaluated by reconstructing molecular phylogenetic trees from nifH, 16S rDNA, and rbcL nucleotide sequences. Subgroupings in Frankia phylogenetic trees reconstructed from nifH and from 16S rDNA sequences were consistent in terms of plant origins of Frankia strains. Although the branching order...
    Resource Type:
    Dissertation
    Full Text:
    infection leading to nodulation in the Frankia-Alnus symbiosis. Can J Bot 64:292- 305 Binkley, D., K