Index Catalog // ScholarsArchive@OSU

Responses and relationships among Fusarium species, sweet corn, and western spotted cucumber beetles

Creator:: Miller, Nathan L. (Nathan Louis)
Abstract:: Sweet corn (Zea mays L.) yields in the Willamette Valley of Oregon have been declining since the early 1990’s. Studies were done to determine if there is a relationship between ear weight and several disease parameters including necrotic crowns or stalk nodes, nodal root rot, radicle root rot, and sub-crown...
Resource Type:: Dissertation
Full Text:: Parke, Dr. Paul Jepson, and Dr. John Fowler, for their ideas, and feedback. I thank Dr. Bill

Vegetative ecology of a montane mire, Crater Lake National Park, Oregon

Creator:: Seyer, Susan C.
Resource Type:: Masters Thesis
Full Text:: AJ ABSTRACT OF THE THESIS OF Susan Cornelia Seyer for the

Characteristics of soil organic matter in two forest soils

Creator:: Crow, Susan E.
Abstract:: Soil organic matter (SOM) is the terrestrial biosphere's largest pool of organic carbon (C) and is an integral part of C cycling globally. Soil organic matter composition typically can be traced directly back to the type of detrital inputs; however, the stabilization of SOM results as a combination of chemical...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Susan E. Crow for the degree

Twenty-one years of secondary succession in Pseudotsuga forests of the western Cascade Range, Oregon

Creator:: Halpern, Charles B.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Charles B. Halpern for the degree

Mitigating cyanobacterial harmful algae blooms : the role of plant humics

Creator:: Theis, Susan A. F.
Abstract:: Cyanobacterial harmful algae blooms (cyanoHABs) are a growing concern worldwide due to damage of ecosystems and threats to human health. Previous research indicates that plant humics from aquatic and wetland vascular plants are effective inhibitors of cyanobacterial metabolism and growth and may be useful as control agents for mitigating cyanoHABs....
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Susan A.F. Theis for the degree of Master of Science in Botany and

Ascospore viability and dispersal from pruned branches infected with Anisogramma anomala

Creator:: Heckert, Stephanie
Abstract:: Viability and dispersal of ascospores of Anisogramma anomala, the cause of eastern filbert blight (EFB) on European hazelnut, from diseased branches pruned from trees were measured. In each of two years, branches bearing stromata of A. anomala were cut in mid-December and compared to branches cut near budbreak in March,...
Resource Type:: Masters Thesis
Full Text:: … 58 Appendix B Additional Spore Traps and Nursery Trees North of Source

Yosemite region nitrogen deposition and patterns in the composition of lichen communities

Creator:: Hutten, Martin
Abstract:: This dissertation describes patterns in epiphytic macrolichen community composition along a nitrogen deposition gradient in the Yosemite region of the Sierra Nevada in California. This region is part of the largest federal air quality Class 1 designated air-shed in the western United States, covering the entire crest of the Sierra...
Resource Type:: Dissertation
Full Text:: .............................................................. 90 APPENDIX B: NITROGEN REGIME AND LICHEN INDICES BY PLOT .............................. 91

The influence of prescribed fire on the rare endemic plant Delphinium pavonaceum (Peacock larkspur)

Creator:: McKernan, Brie-Anne
Abstract:: In the wetland prairie of William L. Finley National Wildlife Refuge (FNWR) in western Oregon, we investigated the response of Delphinium pavonaceum Ewan (peacock larkspur, Ranunculaceae), an endangered perennial forb, to four unreplicated dormant season fire regimes of 0, 2, 4, or 10 fires that were applied over a 12-year...
Resource Type:: Masters Thesis
Full Text:: to D. pavonaceum conservation goals and may be ameliorated after 3 years. Bombus ca1fornicus, B

Reproduction, demography, and habitat characterization of Astragalus peckii (Fabaceae), a rare central Oregon endemic

Creator:: Martin, Elizabeth F.
Abstract:: With little previous research on Astragalus peckii (Fabaceae), a state-listed Threatened species in Oregon, I investigated three facets of its biology which are integral to the conservation and management of the species. First, a four-year demographic study of two large populations revealed increasing population growth at one site (Chiloquin) and...
Resource Type:: Dissertation
Full Text:: me the independence I needed to develop my research in new directions each year. Susan Kephart

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:: listed as a quarantined invasive species in California, Oregon, and Washington. Currently, B

ScholarsArchive@OSU

Responses and relationships among Fusarium species, sweet corn, and western spotted cucumber beetles

Vegetative ecology of a montane mire, Crater Lake National Park, Oregon

Characteristics of soil organic matter in two forest soils

Twenty-one years of secondary succession in Pseudotsuga forests of the western Cascade Range, Oregon

Mitigating cyanobacterial harmful algae blooms : the role of plant humics

Ascospore viability and dispersal from pruned branches infected with Anisogramma anomala

Yosemite region nitrogen deposition and patterns in the composition of lichen communities

The influence of prescribed fire on the rare endemic plant Delphinium pavonaceum (Peacock larkspur)

Reproduction, demography, and habitat characterization of Astragalus peckii (Fabaceae), a rare central Oregon endemic

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

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