Index Catalog // ScholarsArchive@OSU

Decomposition of four species of leaf material in three replicate streams with different nitrate input

Creator:: Triska, F. J. and Sedell, James R.
Resource Type:: Technical Report
Full Text:: were compared wit h changes in acid detergent fiber according to the method of Van Soest (1963) . A

Survival of fecal coliform bacteria in sludge-amended soils

Creator:: Hartel, Peter G.
Abstract:: A study was conducted to determine the effects or temperature, solar radiation, rainfall, and saturated flow on fecal coliform numbers in sewage sludge-amended soils. To determine this, four 4.6 X 13.7 m field plots were each amended in summer and in winter with 800 liters of anaerobically-digested sewage sludge, and...
Resource Type:: Dissertation
Full Text:: depending on the season (Van Donsel et al., 1967). Thus, only fecal coliforms were used here. It is

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:: (Kolar and Lodge 2001; Daehler 2003; Pyšek and Richardson 2008; Van Kleunen, Weber, and Fischer 2010

Evaluation of effectiveness of Rhizobium trifolii strains for Trifolium subterraneum L. (subterranean clover) in southwestern Oregon soils

Creator:: Kibbey, Heather Jean
Abstract:: Twelve high effective Rhizobium trifolii strains were evaluated at four locations in southwest Oregon for the ability to effectively nodulate Mount Barker subterranean clover. All twelve strains possessed antibiotic resistance markers to facilitate identification of strains when extracted from nodules. No significant differences in plant dry weight means could be...
Resource Type:: Masters Thesis
Full Text:: al., 1973 and Danso and Alexander, 1974) used mutants to study the viability of rhizobia in soil

Effect of Endothal and certain other selective herbicides on microbial activity in six different soils

Creator:: Au, Frederick Hung Fo
Abstract:: The effect of Endothal (3, 6-endoxyhexahydrophthalic acid), sodium pentachlorophenate (Na-PCP) and TD-47 (di-N, N-dimethylcocoamine salt of Endothal) on the microbial populations, ammonification, nitrification and respiration in six different soils was investigated. It was found that Endothal at 20 and 200 ppm had no adverse effect on the microbial population, ammonification,...
Resource Type:: Dissertation
Full Text:: . mycoides. 13 Effect of Endothal and TD -47 on Aspergillus niger van Tiegham. Page 98 99 100

Microbial changes and interactions in the rhizosphere of vesicular-arbuscular mycorrhizal plants

Creator:: Meyer, Julie (Julie Rae)
Abstract:: The influence of vesicular-arbuscular mycorrhizae (VAM) on populations of general taxonomic and functional groups of naturally-occurring rhizosphere bacteria and actinomycetes associated with roots of sweet corn (Zea mays var. rugosa) and subterranean clover (Trifolium subterraneum L.) was assayed using selective media. Sporangial production by Phytophthora cinnamomi was also used as...
Resource Type:: Masters Thesis
Full Text:: biocontrol of some root- infecting fungi (Cook and Baker, 1983; Mitchell and Alexander, 1962), were found

Evaluation of an automated respiration method used in assessing the toxicity of zinc on soil microorganisms

Creator:: Boening, Dean W.
Abstract:: Microorganisms can be a valuable tool in assessing the toxicity of heavy metals. The soil respiration rate is a commonly explored endpoint. I utilized a fully automated respirometer incorporating an infrared gas analyzer (IRGA) and developed a method for measuring the effect of Zn on soil microbial populations. Zinc, in...
Resource Type:: Masters Thesis
Full Text:: systems (Burns, 1982; Alexander, 1977), ATP content (Holm-Hansen, 1986; Brezonik and Patterson, 1972

The effect of soil moisture and temperature on survival of Verticillium microsclerotia

Creator:: Nadakavukaren, Mathew Joseph
Resource Type:: Dissertation
Full Text:: was no clear description by the original describers of the species. Van Den Ende (41) concluded

Soil and rumen microbial responses to photooxidized grass straw

Creator:: Park, Jerry Eugene
Abstract:: Straw has many uses, as feed, roughage, animal bedding, but these requirements are not sufficient to utilize the available production. In areas where grasskseed is produced, post-harvest straw is burned in the field to help prevent crop disease the following year. This treatment is very wasteful in terms of straw...
Resource Type:: Masters Thesis
Full Text:: . Alexander, Director. The assistance of Dr. D. C. Church and Mr. D. C. Anderson of the Animal Science

Detection of the Burkholderia cepacia complex in soil environments

Creator:: Miller, Suzanne C. McKenzie
Abstract:: Burkholderia cepacia complex (Bcc) bacteria reside in soil, plant rhizospheres, and water, but the prevalence of Bcc in outdoor environments is not clear. In this study, we sampled a variety of soil and rhizosphere environments with which people may have contact: playgrounds, athletic fields, parks, hiking trails, residential yards and...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Decomposition of four species of leaf material in three replicate streams with different nitrate input

Survival of fecal coliform bacteria in sludge-amended soils

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

Evaluation of effectiveness of Rhizobium trifolii strains for Trifolium subterraneum L. (subterranean clover) in southwestern Oregon soils

Effect of Endothal and certain other selective herbicides on microbial activity in six different soils

Microbial changes and interactions in the rhizosphere of vesicular-arbuscular mycorrhizal plants

Evaluation of an automated respiration method used in assessing the toxicity of zinc on soil microorganisms

The effect of soil moisture and temperature on survival of Verticillium microsclerotia

Soil and rumen microbial responses to photooxidized grass straw

Detection of the Burkholderia cepacia complex in soil environments

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