Index Catalog // ScholarsArchive@OSU

Description of the plant communities and succession of the Oregon coast grasslands

Creator:: Ripley, James Douglas
Abstract:: In an effort to describe the plant communities and succession of the Oregon coastal grasslands, vegetation and environmental data were collected from 75 stands at 24 separate locations ranging from Cape Falcon in Tillamook County to Cape Ferrelo in Curry County. The vegetation data consisted of cover and frequency values...
Resource Type:: Dissertation
Full Text:: Oregon Coastal Grasslands AN ABSTRACT OF THE THESIS OF James Douglas Ripley for the degree of Doctor

Decay caused by infection of Fomes cajanderi Karst : in top-broken, young-growth Douglas-fir trees

Creator:: Cahill, James M.
Abstract:: A glaze storm of exceptional severity was seen in the Corvallis area, January, 1942. The weight of ice that accumulated in the crowns of young-growth Douglas-fir trees caused widespread top breakage in many stands lying in the broad path of this storm. Early research on this phenomenon showed the majority...
Resource Type:: Masters Thesis
Full Text:: top-broken, young-growth Douglas-fir trees ABSTRACT OF THE THESIS OF James Michael Cahill for the

Plant communities of the grassy balds of Marys Peak, Oregon

Creator:: Snow, Billy Douglas
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Billy Douglas Snow for the degree

Soil fungal hyphal dynamics and seasonal hypogeous sporocarp production in western Oregon Douglas-fir forests

Creator:: Hunt, Gary, 1945-
Abstract:: Total length and biomass of fungal mycelium in the soil of a young Douglas-fir stand in the central Oregon Coast Range were estimated over 27 months with the agar-film technique. In a second study, phenology and taxonomy of hypogeous (belowground) sporocarps were studied over 32 months in a nearby, young...
Resource Type:: Dissertation
Full Text:: Sporocarp Production in Western Oregon Douglas-Fir Forests AN ABSTRACT OF THE THESIS OF Gary Alan Hunt

Root initiation and differentiation in Pseudotsuga menziesii (Mirbel) Franco

Creator:: Bogar, Gerald Dale
Abstract:: Tissue differentiation of the primary root and its associated laterals is reported. Secretory elements are the first of the primary tissues to mature. They appear to be located between the precursory phloem and pericycle in the primary root, but are more closely associated with the pericycle in long lateral roots....
Resource Type:: Masters Thesis
Full Text:: ) FRANCO INTRODUCTION The anatomy of Douglas -fir (Pseudotsuga menziesii (Mirb. ) Franco) has been

Nursery, cold storage, and field studies on western conifers inoculated with spores of Pisolithus tinctorius

Creator:: Alvarez, Isabel Fernandez
Abstract:: Inoculations of white fir, Shasta red fir, Douglas fir and ponderosa pine with Pisolithus tinctorius spores when outplanted failed to produce P. tinctorius mycorrhizae at the end of the first growing season. In the third year a few P. tinctorius mycorrhizae were formed on white fir. Inoculations reduced seedling survival...
Resource Type:: Dissertation
Full Text:: PISOLITAIUS TINCTORIUS Abstract approved: Redacted for Privacy v -4 ..1\1s*--1 Dr. James M. Trappe

Patterns of ectomycorrhizal host-fungus specificity in the Pacific Northwest

Creator:: Molina, R.
Abstract:: Results from approximately 400 fungus-host pure culture inoculations indicate that specificity of ectomycorrhizal associations is a complex phenomenon and cannot be based solely on field observations of sporocarp-host associations. Of the numerous sporocarp-host specific fungi tested, most formed ectomycorrhizae with one or more unexpected, non-associated hosts. These results conclusively demonstrate...
Resource Type:: Dissertation
Full Text:: HOST-FUNGUS SPECIFICITY IN THE PACIFIC NORTHWEST Redacted for Privacy Abstract approved: Dr. James M

Factors affecting the inoculum potential of VA and ectomycorrhizal fungi in forest soils of southwest Oregon and northern California

Creator:: Parke, Jennifer Lee
Resource Type:: Dissertation
Full Text:: Douglas-fir and ponderosa pine was less in soils from old clearcuts than in soils from adjacent

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 in nursery operations. For example, in two Douglas-fir container nurseries, James (1987) found

Potential susceptibility of tanoak associated and rare ericaceous plant species of southwestern Oregon to Phytophthora ramorum

Creator:: Zanzot, James W.
Abstract:: The sudden oak death pathogen, Phytophthora ramorum, is present in southwestern Oregon, and while an eradication effort is underway, the potential impact of the polyphagous pathogen on surrounding vegetation is unknown. Plant communities in the area are substantially different from those affected in California, although tanoak (Lithocarpus densiflorus), evergreen huckleberry...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF James W. Zanzot for the degree of

ScholarsArchive@OSU

Description of the plant communities and succession of the Oregon coast grasslands

Decay caused by infection of Fomes cajanderi Karst : in top-broken, young-growth Douglas-fir trees

Plant communities of the grassy balds of Marys Peak, Oregon

Soil fungal hyphal dynamics and seasonal hypogeous sporocarp production in western Oregon Douglas-fir forests

Root initiation and differentiation in Pseudotsuga menziesii (Mirbel) Franco

Nursery, cold storage, and field studies on western conifers inoculated with spores of Pisolithus tinctorius

Patterns of ectomycorrhizal host-fungus specificity in the Pacific Northwest

Factors affecting the inoculum potential of VA and ectomycorrhizal fungi in forest soils of southwest Oregon and northern California

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

Potential susceptibility of tanoak associated and rare ericaceous plant species of southwestern Oregon to Phytophthora ramorum

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