Index Catalog // ScholarsArchive@OSU

Effectiveness of Vehicle Washing and Roadside Sanitation in Decreasing Spread Potential of Port-Orford-Cedar Root Disease

Creator:: Goheen, Donald J., Mallams, Katrina, Betlejewski, Frank, and Hansen, Everett
Abstract:: Two techniques widely recommended for managing Port-Orford-cedar root disease (caused by the introduced pathogen Phytophthora lateralis) are vehicle washing and roadside sanitation. However, their effectiveness has never been tested using a sample-based approach. Vehicle washing effectiveness was evaluated using Port-Orford-cedar seedling baits and a double-washing method. Washing with water can...
Resource Type:: Article
Full Text:: Decreasing Spread Potential of Port-Orford-Cedar Root Disease Donald J. Goheen, Katrina Mallams, Frank

Alongshore current over variable beach topography

Creator:: Slinn, Donald N., Allen, J. S., and Holman, Robert A.
Abstract:: The nonlinear dynamics of unstable alongshore currents in the nearshore surf zone over variable barred beach topography are studied using numerical experiments. These experiments extend the recent studies of Allen et al. [1996] and Slnn et al. [1998], which utilized alongshore uniform beach topographies by including sinusoidal alongshore variation to...
Resource Type:: Article

Magma transport and olivine crystallization depths in Kīlauea's east rift zone inferred from experimentally rehomogenized melt inclusions

Creator:: Tuohy, Robin M., Wallace, Paul J., Loewen, Matthew W., Swanson, Donald A., and Kent, Adam J. R.
Abstract:: Concentrations of H₂O and CO₂ in olivine-hosted melt inclusions can be used to estimate crystallization depths for the olivine host. However, the original dissolved CO₂ concentration of melt inclusions at the time of trapping can be difficult to measure directly because in many cases substantial CO₂ is transferred to shrinkage...
Resource Type:: Article
Full Text:: zone inferred from experimentally rehomogenized melt inclusions Robin M. Tuohy a,⇑, Paul J. Wallace a

Genetic Identification of Chinook Salmon: Stock-Specific Distributions of Juveniles along the Washington and Oregon Coasts

Creator:: Teel, David J., Burke, Brian J., Kuligowski, David R., Morgan, Cheryl A., and Van Doornik, Donald M.
Abstract:: We used microsatellite DNA data and genetic stock identification methods to delineate the temporal and spatial distributions of juvenile Chinook Salmon Oncorhynchus tshawytscha occupying coastal habitats extending from central Oregon to northern Washington. Juveniles were collected in trawl surveys conducted during spring, summer, and autumn over 15 years. Distributions (mean...
Resource Type:: Article

Leaf-level physiology in four subalpine plants in tephra-impacted forests during drought

Creator:: Watt, Abby J., Fischer, Dylan G., Antos, Joseph A., and Zobel, Donald B.
Abstract:: Ecological impacts of climate change in the Pacific Northwest may hinge on acclimation to drier summers, highlighting the importance of plant physiological studies in forests. Evaluating dominant forest plant species under old-growth and managed forest conditions is similarly important as timber harvest might change microclimates and alter drought effects on...
Resource Type:: Article
Full Text:: -impacted forests during drought Abby J. Watt, Dylan G. Fischer, Joseph A. Antos, and Donald B. Zobel

Camelina: Seed Yield Response to Applied Nitrogen and Sulfur

Creator:: Wysocki, Donald J., Chastain, Thomas G., Schillinger, William F., Guy, Stephen O., and Karow, Russell S.
Abstract:: Camelina (Camelina sativa L. Crantz) has received worldwide attention in recent years as a biofuel crop and as a broadleaf option in cereal-based cropping systems. The objective of our 3-year study was to determine camelina seed yield and nitrogen use efficiency (NUE) as affected by six applied nitrogen (N) rates...
Resource Type:: Article
Full Text:: 5 Donald J. Wysocki* a , Thomas G. Chastain b , William F. Schillinger c , Stephen O. Guy d

Potential Effects of Management on Caspian Tern Hydroprogne caspia Predation on Juvenile Salmonids at a Colony in San Francisco Bay, California

Creator:: Adrean, Lindsay J., Roby, Daniel D., Lyons, Donald E., Collis, Ken, and Evans, Allen F.
Abstract:: San Francisco Bay is a proposed relocation site for some of the Caspian terns Hydroprogne caspia currently nesting at the world's largest colony for the species in the Columbia River estuary and consuming salmonids listed under the U. S. Endangered Species Act (ESA). However, several runs of salmonids listed under...
Resource Type:: Article
Full Text:: Lindsay J. Adrean1 Department of Fisheries and Wildlife, Oregon State University, 104 Nash Hall

The Pseudomonas aeruginosa antimetabolite L-2-amino-4-methoxy-trans-3-butenoic acid inhibits growth of Erwinia amylovora and acts as a seed germination-arrest factor

Creator:: Lee, Xiaoyun, Azevedo, Mark D., Armstrong, Donald J., Banowetz, Gary M., and Reimmann, Cornelia
Abstract:: The Pseudomonas aeruginosa antimetabolite L-2-amino-4-methoxy-trans-3-butenoic acid (AMB) shares biological activities with 4-formylaminooxyvinylglycine, a related molecule produced by Pseudomonas fluorescens WH6. We found that culture filtrates of a P.aeruginosa strain overproducing AMB weakly interfered with seed germination of the grassy weed Poa annua and strongly inhibited growth of Erwinia amylovora, the...
Resource Type:: Article
Full Text:: germination-arrest factor Xiaoyun Lee,1 Mark D. Azevedo,2 Donald J. Armstrong,3 Gary M. Banowetz2 and

Potential for ethanol production from conservation reserve program lands in Oregon

Creator:: Juneja, Ankita, Kumar, Deepak, Williams, John D., Wysocki, Donald J., and Murthy, Ganti S.
Abstract:: Increase in energy demand has led towards considering lignocellulosic feedstocks as potential for ethanol production. Aim of this study was to estimate the potential of grass straws from conservation reserve program (CRP) lands as feedstocks for ethanol production. The CRP was initiated to ensure reduction in soil erosion with a...
Resource Type:: Article
Full Text:: program lands in Oregon Ankita Juneja,1 Deepak Kumar,1 John D. Williams,2 Donald J. Wysocki,3 and Ganti

Camelina: Planting date and method effects on stand establishment and seed yield

Creator:: Schillinger, William F., Wysocki, Donald J., Chastain, Thomas G., Guy, Stephen O., and Karow, Russell S.
Abstract:: There has been keen interest in camelina (Camelina sativa L. Crantz) in recent years due to the unique fatty acid composition of the seed oil for human and animal consumption and, more importantly, the value of the seed oil to provide “green energy” to fuel commercial and military aircraft. The...
Resource Type:: Article

ScholarsArchive@OSU

Effectiveness of Vehicle Washing and Roadside Sanitation in Decreasing Spread Potential of Port-Orford-Cedar Root Disease

Alongshore current over variable beach topography

Magma transport and olivine crystallization depths in Kīlauea's east rift zone inferred from experimentally rehomogenized melt inclusions

Genetic Identification of Chinook Salmon: Stock-Specific Distributions of Juveniles along the Washington and Oregon Coasts

Leaf-level physiology in four subalpine plants in tephra-impacted forests during drought

Camelina: Seed Yield Response to Applied Nitrogen and Sulfur

Potential Effects of Management on Caspian Tern Hydroprogne caspia Predation on Juvenile Salmonids at a Colony in San Francisco Bay, California

The Pseudomonas aeruginosa antimetabolite L-2-amino-4-methoxy-trans-3-butenoic acid inhibits growth of Erwinia amylovora and acts as a seed germination-arrest factor

Potential for ethanol production from conservation reserve program lands in Oregon

Camelina: Planting date and method effects on stand establishment and seed yield

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