Index Catalog // ScholarsArchive@OSU

Phylogenetic relationships of the bumblebees (Apidae: Hymenoptera) in the Pacific Northwest of America inferred from mitochondrial cytochrome oxidase gene sequences

Creator:: Pongprasert, Weerathep
Resource Type:: Dissertation
Full Text:: , Dr. John Lattin and Dr. Kenneth B. Johnson, for their advice and assistance during my study. I am

Multiple pest suppression with cover crops in strawberry

Creator:: Datta, Braja Bandhu
Abstract:: The experiment was conducted to compare multiple pest (weed, soil arthropod and diseases) suppression by cereal cover crops in 'Selva' and 'Totem' strawberry. In addition, perlite was used to compare improvement of soil and root aeration which might modify strawberry black root rot complex. Small-seeded summer annual weeds were suppressed...
Resource Type:: Masters Thesis
Full Text:: my committee members Dr. Kenneth B. Johnson, Dr. Edward W. Hellman and graduate representative Dr

Breeding Snap Beans for Organic Agriculture: Quantification and Application of Key Traits

Creator:: Park, Hayley E.
Abstract:: Improving crop cultivars for use on organic farms is pertinent, as current elite germplasm is less resilient within the more variable context of organic farm environments. Although a growing number of studies have focused on organic plant breeding in cereal crops, very few have focused on vegetable crops, especially those...
Resource Type:: Masters Thesis
Full Text:: graduate students in the Department of Horticulture. I would also like to thank Kendal Johnson for his

Transcriptome Responses of the Nitrifying Bacteria Nitrosomonas europaea and Nitrobacter hamburgensis to Low Oxygen

Creator:: Dobie, Michael
Abstract:: Nitrification is the process within the global Nitrogen Cycle where ammonia (NH3) is oxidized to nitrate (NO₃⁻) and can be carried out by two distinct groups of bacteria. The ammonia-oxidizing bacteria (AOB) first oxidize NH₃ to nitrite (NO₂⁻), and second, the nitrite-oxidizing bacteria (NOB) oxidize NO₂⁻ to NO₃⁻. In aerobic...
Resource Type:: Masters Thesis
Full Text:: , Dr. Ryan Muller and Dr. Kenneth B. Johnson for serving on my graduate committee as well as the

Students thought processes while engaged in computer programming

Creator:: Ahmed, Aqeel M.
Abstract:: The purpose of this qualitative study was to investigate the thought processes of secondary level novice programmers engaged in computer programming for the purpose of generating hypotheses for consideration in future research on the relationship between computer programming and problem solving. A high school BASIC programming course with 14 students...
Resource Type:: Dissertation
Full Text:: stimulated me along the way: Drs. Jake Nice, Toshimi Minoura, and Kenneth Johnson. I have learned a lot

Use of pore-scale network to model three-phase flow in a bedded unsaturated zone

Creator:: Zhang, Wenqian
Abstract:: Contamination of ground water by non-aqueous phase liquids (NAPLs) has received increasing attention. The most common approach to numerical modeling of NAPL movement through the unsaturated zone is the use of the finite difference or finite element methods to solve a set of partial differential equations derived from Darcy's law...
Resource Type:: Masters Thesis
Full Text:: . Andrew Hashimoto, Dr. Peter Nelson, and Dr. Kenneth Johnson for their invaluable advice, and taking

Introgression between jointed goatgrass (Aegilops cylindrica) and wheat (Triticum aestivum)

Creator:: Snyder, Jeremy R.
Abstract:: Hybrids between wheat and jointed goatgrass have long been presumed to be sterile; however, seed were found on hybrid plants in 1990. Field studies were conducted in 1995 and repeated in 1996. One to ten hybrid plants were planted in variable populations of wheat and jointed goatgrass to determine the...
Resource Type:: Masters Thesis
Full Text:: . I also thank Dr. Russell Karow, Dr. Kenneth Johnson and Mr. Michael Gamroth for serving on my

Production of haploid plants in selected winter wheat genotypes through anther culture and intergeneric crosses with maize

Creator:: Mendoza, Maria Graciela
Abstract:: A higher level of efficiency in the production of doubled-haploids must be achieved if this procedure is to be beneficial in plant improvement. Of equal importance is the development of protocols, which are not genotypic specific and result in progeny that represent a random sample of gametes from the parental...
Resource Type:: Dissertation
Full Text:: would like to extend my appreciation to Dr. David Thomas, Dr. Patrick Hayes, and Dr. Kenneth Johnson

Serial manure amendments : effects on soil properties and root rot of sweet corn

Creator:: Cox, Bonnie S. Hoffman
Abstract:: The effect of serial (multiple-year) organic matter (OM) amendment on soil properties has been described in some cropping systems, although less is known about the effect of serially amended field soils on soil-borne plant diseases. The objectives of this study were to describe the effects of the third and fourth...
Resource Type:: Masters Thesis
Full Text:: Johnson, for their participation and for their contributions to my work. I am grateful to the USDA IFAFS

Investigation of novel sources of genetic resistance to eastern filbert blight

Creator:: Lunde, China F.
Abstract:: To identify novel host genetic resistance to eastern filbert blight, caused by the fungus Anisogramma anomala (Peck) E. Muller, ninety European hazelnut {Corylus avellana L.) varieties and interspecific hybrids (with C. americana Marsh, or C. colurna L.) were screened for response to the eastern filbert blight pathogen after inoculation in...
Resource Type:: Masters Thesis
Full Text:: , Kenneth Johnson, and Patrick Hayes, also provided much helpful advice. The Horticulture Department as

ScholarsArchive@OSU

Phylogenetic relationships of the bumblebees (Apidae: Hymenoptera) in the Pacific Northwest of America inferred from mitochondrial cytochrome oxidase gene sequences

Multiple pest suppression with cover crops in strawberry

Breeding Snap Beans for Organic Agriculture: Quantification and Application of Key Traits

Transcriptome Responses of the Nitrifying Bacteria Nitrosomonas europaea and Nitrobacter hamburgensis to Low Oxygen

Students thought processes while engaged in computer programming

Use of pore-scale network to model three-phase flow in a bedded unsaturated zone

Introgression between jointed goatgrass (Aegilops cylindrica) and wheat (Triticum aestivum)

Production of haploid plants in selected winter wheat genotypes through anther culture and intergeneric crosses with maize

Serial manure amendments : effects on soil properties and root rot of sweet corn

Investigation of novel sources of genetic resistance to eastern filbert blight

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