Index Catalog // ScholarsArchive@OSU

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

Effects of refrigeration storage and processing technologies on the bioactive compounds and antioxidant capacities of blackberries ('Marion' and 'Evergreen')

Creator:: Wu, Ruyi
Abstract:: The objective of this project was to investigate the effects of refrigeration storage and processing technologies on the quality and nutraceutical benefit of blackberries. 'Marion' and 'Evergreen', the two major blackberry varieties in Oregon, were evaluated in this study. For refrigeration storage, fresh fruit were packed in clam-shell containers right...
Resource Type:: Masters Thesis
Full Text:: Kennedy, Andrew Ross and Kenneth Johnson for dedicating your precious times and efforts to review my

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

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

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

N processing in grass seed crops differing in soil drainage and disturbance in western Oregon, U.S.A.

Creator:: Nelson, Machelle A.
Abstract:: A better understanding of grass seed crop and soil fertility is necessary to improve fertilizer practices and preserving water quality in Willamette Valley, Oregon, where 55% of land-use is in grass seed production that directly impacts adjacent waterways containing native protected fish species. I determined tillage effects on soil N...
Resource Type:: Masters Thesis
Full Text:: . David Myrold, Dr. John Selker, and Dr. Kenneth Johnson, for all of their helpful suggestion and

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

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:: Genetic Resistance to Eastern Filbert Blight Abstract approved: "" "*T^J""-" 'tJ* v^ *«r.^n_ Shawn

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

Overwintering survival of stem rust on perennial ryegrass : construction of a simulation model, and effects of the mycoparasite Sphaerellopisis filum

Creator:: Gordon, Tyler C.
Abstract:: Stem rust, caused by the fungus Puccinia graminis subsp. graminicola, can cause yield reductions exceeding 90% on perennial ryegrass (Lolium perenne L.) crops grown for seed if not treated with fungicide in the spring. There is evidence that late-spring stem rust epidemics are initiated by populations that survived the winter....
Resource Type:: Masters Thesis
Full Text:: throughout this research process. I would like to thank Drs. Christopher Mundt, Kenneth Johnson and David

ScholarsArchive@OSU

Multiple pest suppression with cover crops in strawberry

Effects of refrigeration storage and processing technologies on the bioactive compounds and antioxidant capacities of blackberries ('Marion' and 'Evergreen')

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

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

N processing in grass seed crops differing in soil drainage and disturbance in western Oregon, U.S.A.

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

Investigation of novel sources of genetic resistance to eastern filbert blight

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

Overwintering survival of stem rust on perennial ryegrass : construction of a simulation model, and effects of the mycoparasite Sphaerellopisis filum

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search