Index Catalog // ScholarsArchive@OSU

The effects of commercial rhizobium inoculants on the establishment of Trifolium subterraneum in southwest Oregon soils

Creator:: Jenkins, Michael B.
Abstract:: Commercial inoculant products for subclover that are marketed in the Pacific Northwest were evaluated in field trials (supplemented by appropriate laboratory analysis) at four sites in southwest Oregon. The materials tested were Nitragin (Milwaukee, WI) and Northrup-King (Minneapolis, MN) peat-based inocula, and Celpril (Manteca, CA) inoculated, lime-pelleted subclover seed. Duplicate...
Resource Type:: Masters Thesis
Full Text:: , and about 500;000 acres of grass and clover pastures (Hagedorn, 1978a). For the particular conditions

Microbial ecology of an old-growth Douglas fir canopy

Creator:: Caldwell, Bruce A.
Abstract:: Microbial populations associated with the major substrates of the canopy of a 70 m old-growth Douglas fir were studied to determine potential activities. Seasonal samples from bark, foliage, epiphytic moss, lichens, and litter accumulations were collected to i) obtain population data, ii) to isolate the major groups of microorganisms present,...
Resource Type:: Masters Thesis
Full Text:: Carroll, 1977 Douglas fir needles, Oregon Goodfellow et. al., 1966 Goodfellow, 1968 Hagedorn, 1976

Tracing septic system effluent movement through saturated hillslope soils

Creator:: McCoy, Edward L.
Abstract:: Three isolates of Escherichia coli were labeled by their resistance to sodium azide and, separately, to novobiocin, nalidix acid, and tetracycline. The strains exhibited a high degree of persistence in the soil environment and were recoverable on strain specific media at levels within the 95% confidence interval of the numbers...
Resource Type:: Masters Thesis
Full Text:: by Hagedorn et al. (1978). In these studies, antibiotic resistant strains of Escherichia coli and

Movement of labeled Escherichia coli through western Oregon hillslope soils under conditions of saturated flow

Creator:: Rahe, Terrance M.
Resource Type:: Masters Thesis
Full Text:: Redacted for privacy Abstract approved: (Charles Hagedorn) Movement of microorganisms through two Oregon

Analysis of variations in selected enzymatic activities with environmental parameters in the soil

Creator:: Stott, Diane Elizabeth
Resource Type:: Masters Thesis
Full Text:: for Privacy Charles Hagedorn Six field sites in western Oregon were assayed periodically over one

Diffusible antimicrobial agents produced by Streptomyces from acidic soils : a modified overlay method for detecting antimicrobial activityand partial characterization of the antimicrobial agents

Creator:: Nkanga, Enefiok James
Abstract:: A modified agar overlay technique for the preliminary screening of antibiotic producing Streptomyces spp. has been developed and compared to the routinely used shake flask method and the unmodified agar overlay technique. The percentage of isolates exhibiting antimicrobial activities was found to be greater in the modified overlay technique. Three...
Resource Type:: Dissertation
Full Text:: . Charles Hagedorn for his able guidance during the course of this investigation and the preparation of

Geographic variations in water quality and recreational use along the upper Wallowa River and selected tributaries

Creator:: McDowell, Theodore R.
Abstract:: Physical, chemical and bacterial water quality parameters of the upper Wallowa River were sampled periodically between July 2, 1978 and June 9, 1979 at nine stream and lake sampling sites. Water upstream from Wallowa Lake was typified by low nutrient concentrations ( generally below detectable limits except for nitrates), low....
Resource Type:: Dissertation
Full Text:: the members of my committee, Dr. 's Charles Rosenfeld, Robert Beschta, James Lahey, Richard Highsmith

Developmental education as a component of persistence in a postsecondary proprietary institution

Creator:: Roberts, Barbara L.
Abstract:: Persistence has been identified as an issue at all levels of higher education, and numerous strategies have been attempted to stem the flow of students who leave an institution before completing their programs of study. Persistence research abounds at the community college, four-year college and university levels, but little research...
Resource Type:: Dissertation
Full Text:: program, especially to Dr. Charles Carpenter who mentored me and served as the chair of my committee

An aeroelastic analysis of the Darrieus wind turbine

Creator:: Meyer, Edward Earnest
Abstract:: The stability of small oscillations of the troposkeinshaped blade used on Darrieus wind turbines is investigated. The blade is assumed to be attached to a perfectly rigid rotor shaft and spinning in still air. Linear equations of motion are derived which include the effects of in-plane, out-of-plane, and torsional stiffness,...
Resource Type:: Dissertation
Full Text:: approved: Redacted for privacy Charles E. Smith The stability of small oscillations of the troposkein

Canopy epiphyte studies in the central Oregon Cascades : implications for the management of Douglas-fir forests

Creator:: Sillett, Stephen Charles
Abstract:: This thesis includes four separate studies. The first two studies assessed edge effects in a 700-year-old forest. After 20 years of exposure, epiphyte assemblages on the clearcut edge were similar to those of the forest interior, but there were some differences in vertical distribution patterns. Several species restricted to the...
Resource Type:: Dissertation
Full Text:: : implications for the management of Douglas-fir forests AN ABSTRACT OF THE THESIS OF Stephen Charles Si

ScholarsArchive@OSU

The effects of commercial rhizobium inoculants on the establishment of Trifolium subterraneum in southwest Oregon soils

Microbial ecology of an old-growth Douglas fir canopy

Tracing septic system effluent movement through saturated hillslope soils

Movement of labeled Escherichia coli through western Oregon hillslope soils under conditions of saturated flow

Analysis of variations in selected enzymatic activities with environmental parameters in the soil

Diffusible antimicrobial agents produced by Streptomyces from acidic soils : a modified overlay method for detecting antimicrobial activityand partial characterization of the antimicrobial agents

Geographic variations in water quality and recreational use along the upper Wallowa River and selected tributaries

Developmental education as a component of persistence in a postsecondary proprietary institution

An aeroelastic analysis of the Darrieus wind turbine

Canopy epiphyte studies in the central Oregon Cascades : implications for the management of Douglas-fir forests

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