Index Catalog // ScholarsArchive@OSU

Factors influencing the effects of host diversity on plant disease epidemics for wheat stripe rust and potato late blight

Creator:: Garrett, Karen A.
Abstract:: Most studies of plant disease epidemiology have focused on epidemics in host populations composed of a single genotype. But crop plant diversity can be a useful means of improving the deployment of resistance genes. In a series of experiments with wheat stripe rust and potato late blight, we studied factors...
Resource Type:: Dissertation
Full Text:: Karen A. Garrett for the degree of Doctor of Philosophy in Botany and Plant Pathology presented on

Morphological and cytological variation in Trillium albidum Freeman (Liliaceae)

Creator:: Bledsoe, Karen E.
Abstract:: This work was performed on Trillium albidum Freeman (Liliaceae), to clarify the pattern of morphological variation between the small-flowered populations at the northern limit of its range ( T. parviflorum Soukup) and the larger-flowered populations from southern Oregon and northern California. It was hypothesized that only a single species of...
Resource Type:: Masters Thesis
Full Text:: . Morphological and Cytological Variation in Trillium albidum Freeman (Liliaceae) by Karen E. Bledsoe A

Interactions between pea seed-borne mosaic virus pathotype 1 and Pisum sativum resistance gene sbm-1

Creator:: Keller, Karen E.
Abstract:: Pea seed-borne mosaic potyvirus pathotype 1 (PSbMV-P1) has the ability to infect most genotypes of Pisum sativum. The exception are those genotypes that are homozygous recessive for the sbm-1 gene. The life cycle of PSbMV pathotype 4 (PSbMV-P4) is unaffected by the sbm-1/sbm-1 genotype. Infectious clones of Pl-P4 recombinants were...
Resource Type:: Masters Thesis
Full Text:: sativum Resistance Gene sbm-1 by Karen E. Keller A THESIS submitted to Oregon State

Dynamics of Zymoseptoria tritici Fungicide Resistance in the Willamette Valley of Oregon

Creator:: Hagerty, Christina H.
Abstract:: The development of resistance to multiple fungicide classes is currently limiting disease management options for many pathogens, while the discovery of new fungicide classes has become less frequent. To address this pressing issue, a three-part study with different layers of complexity, objectives, and experimental approaches was conducted using the model...
Resource Type:: Dissertation
Full Text:: classes has become less frequent. To address this pressing issue, a three- part study with different

Environmental factors influencing the rate of spread of Phellinus weirii (Murr.) Gilbertson in young-growth Douglas-fir

Creator:: Angwin, Peter A.
Abstract:: Studies to identify the environmental factors that influence the rate of ectotrophic mycelial growth of Phellinus weirii (Murr.) Gilbertson along Douglas-fir roots were undertaken both in the laboratory and in the field. The effects of soil pH, nitrogen, moisture, temperature, microorganisms and bulk density were investigated. In the lab, the...
Resource Type:: Masters Thesis
Full Text:: of Phellinus weirii (Murr.) Gilbertson in Young-growth Douglas-fir by Peter Andrew Angwin A

Sulfation of fucoidin in Fucus zygotes : intermediates of sulfate transfer

Creator:: Peterman, Jeffrey J.
Resource Type:: Masters Thesis
Full Text:: . Schiff, J. A., and R. C. Hodson. (1973). The Metabolism of Sulfate. Ann. Rev. Plant Physiol. 24: 381-414

Identification and Occurrence of Sweet Cherry (Prunus avium) Virus and Virus-Like Diseases in Various Regions and Orchards of Oregon

Creator:: Reinhold, Lauri A.
Abstract:: There are over 35 known virus and virus-like diseases of sweet cherry (Prunus avium), some with potential to cause severe economic impact by reducing vegetative growth, vigor, and/or quality of fruit. Oregon is the second-ranked state for sweet cherry production in the United States with 13,000 acres and $70.8 million...
Resource Type:: Dissertation
Full Text:: Oregon by Lauri Ann Reinhold A DISSERTATION submitted to Oregon

Integration and excision of pMMC7105 in Pseudomonas syringae pv. phaseolicola occur by recombination between copies of a repetitive IS-like sequence

Creator:: Ehrenshaft, Marilyn
Resource Type:: Dissertation
Full Text:: syringae pv. phaseolicola occur by recombination between copies of a repetitive IS-like sequence AN

Conservation of Sidalcea nelsoniana through habitat management : effects of burning, mowing, and altered flooding regime on a rare Willamette Valley perennial

Creator:: Bartels, Marilynn R.
Abstract:: Active habitat management plays a key role in the preservation of native ecosystems and rare species, especially in the Willamette Valley of Oregon, where natural succession to woodlands threatens the few wetland prairies remaining after 150 years of agriculture and urbanization. Sidalcea nelsoniana, listed as threatened under the federal Endangered...
Resource Type:: Masters Thesis
Full Text:: Regime on a Rare Willamette Valley Perennial. Abstract approved: 9 Mark V. Wilson Active habitat

The Role of Plant-soil Feedback in the Invasion of Brachypodium sylvaticum in Douglas-fir Forests

Creator:: Esterson, Andrew
Abstract:: Invasive plants have the capacity to transform landscapes and alter ecosystem function, causing significant economic and ecological damage. These effects include displacement and reduction of native flora and fauna, altered fire regimes, modification of biotic and abiotic soil properties, as well as local, regional, and global economic impacts. With such...
Resource Type:: Masters Thesis
Full Text:: . One process that has been associated with plant invasion is plant-soil feedback (PSF). A PSF occurs

ScholarsArchive@OSU

Factors influencing the effects of host diversity on plant disease epidemics for wheat stripe rust and potato late blight

Morphological and cytological variation in Trillium albidum Freeman (Liliaceae)

Interactions between pea seed-borne mosaic virus pathotype 1 and Pisum sativum resistance gene sbm-1

Dynamics of Zymoseptoria tritici Fungicide Resistance in the Willamette Valley of Oregon

Environmental factors influencing the rate of spread of Phellinus weirii (Murr.) Gilbertson in young-growth Douglas-fir

Sulfation of fucoidin in Fucus zygotes : intermediates of sulfate transfer

Identification and Occurrence of Sweet Cherry (Prunus avium) Virus and Virus-Like Diseases in Various Regions and Orchards of Oregon

Integration and excision of pMMC7105 in Pseudomonas syringae pv. phaseolicola occur by recombination between copies of a repetitive IS-like sequence

Conservation of Sidalcea nelsoniana through habitat management : effects of burning, mowing, and altered flooding regime on a rare Willamette Valley perennial

The Role of Plant-soil Feedback in the Invasion of Brachypodium sylvaticum in Douglas-fir Forests

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