Index Catalog // ScholarsArchive@OSU

Breeding Snap Beans for Organic Agriculture: Genomic Shifts under Different Agricultural Management Systems

Creator:: King, Ryan M.
Abstract:: Although the concept of breeding crops for organic agricultural systems has been around for decades, few studies have been reported for vegetable crops to quantify and compare how conventional and organic systems differ in their selection pressures on genotypes advancing through the breeding cycle; especially research utilizing modern sequencing capabilities....
Resource Type:: Masters Thesis
Full Text:: THE THESIS OF Ryan M. King for the degree of Master of Science in Horticulture presented on June

Identification and distribution of the mating-type locus and development of cleistothecia of Podosphaera macularis

Creator:: Wolfenbarger, Sierra N.
Abstract:: Podosphaera macularis, causal agent of hop powdery mildew, is known to produce cleistothecia (syn. chasmothecia) in eastern North America and Europe, but ascocarps are not reported from the Pacific Northwestern region of North America. Reasons for the apparent absence of cleistothecia in the Pacific Northwest are unknown. We established that...
Resource Type:: Masters Thesis

Applications in plant breeding : end-use quality, tissue culture propagation systems, and outreach for K-12 education

Creator:: Halstead, Margaret A.
Abstract:: This thesis consists of five chapters: a general introduction, two manuscripts, a collection of published lesson plans, and a general conclusion. The works collected herein are united by the common theme of practical applications in plant breeding. The first manuscript reports a study performed on five malting barley lines grown...
Resource Type:: Masters Thesis
Full Text:: contributions to malting quality Dr. Patrick Hayes, and Scott Fisk (all of Department of Crop and Soil

Farmer perspectives on the transition to organic agriculture : an Oregon study of farmer motivations and barriers

Creator:: Lloyd, Deanna M.
Abstract:: In the midst of double-digit growth in market demand for organic products, there is a lag in the growth of certified organic production in the United States. This thesis investigated the motivations and barriers farmers face when making the transition to organic agriculture. Three distinct organic farmer typologies were identified:...
Resource Type:: Masters Thesis
Full Text:: Deanna M. Lloyd for the degree of Master of Science in Crop Science presented on November 21, 2016

Expression and Function of Populus Homologs to TERMINAL FLOWER 1 Genes: Roles in Onset of Flowering and Shoot Phenology

Creator:: Mohamed, Rozi
Abstract:: We isolated and characterized the expression of two genes from Populus trichocarpa that are homologous to the TERMINAL FLOWER 1 (TFL1) gene from the model annual plant Arabidopsis. In Arabidopsis, overexpression of the TFL1 gene extends the vegetative growth phase, and the homozygous mutant tfl1 allele causes early flowering and...
Resource Type:: Dissertation
Full Text:: : __________________________________________________ Steven H. Strauss Amy M. Brunner We isolated and characterized the expression of

Investigating the Quality Dynamics of American Aroma Hops Intended for Dry-Hopping Beer

Creator:: Lafontaine, Scott R.
Abstract:: Historically, brewers have used dry-hopping (a cold extraction of nonvolatile and volatile chemicals from hops into fermenting or finished beer) to increase the microbial stability and shelf life of their beer. As hoppy beer styles have gained in popularity over the last decade (2007-2017), the objective of dry-hopping has turned...
Resource Type:: Dissertation
Full Text:: been an honor to learn and grow with you. To my committee members Dr. Patrick Hayes, Dr. Vincent

Crossing behavior, RAPD analysis and chlorophyll flourescence in relationship to the geographic adaption of birdsfoot trefoil (Lotus corniculatus L.)

Creator:: García de los Santos, Gabino
Abstract:: Birdsfoot trefoil (Lotus corniculatus L.) is a popular perennial, non-bloating forage legume used for pasture, hay and silage throughout the temperate regions of Europe, Asia Minor, North Africa and North and South America. It is regarded as the most morphologically and biochemically variable species in the genus. Research investigating the...
Resource Type:: Dissertation
Full Text:: . Griffith, Dr. Aaron Liston, Dr. Patrick M. Hayes, and Dr. Russell S. Karow, for their suggestions and

Frequency, Distribution, Ploidy Diversity and Control Options of Herbicide Resistant Italian Ryegrass (Lolium perenne L. spp. multiflorum (Lam.) Husnot) Populations in Western Oregon

Creator:: Bobadilla, Lucas K.
Abstract:: Italian ryegrass (Lolium perenne L. spp. multiflorum (Lam.) Husnot) is one of the most troublesome weeds with respect to herbicide resistance selection. Some reasons for this are the numerous documented cases of multiple and cross herbicide resistance and some of the biological characteristics of this species, such as wind cross-pollination...
Resource Type:: Masters Thesis
Full Text:: Mallory-Smith, Dr. Marcelo L. Moretti, Dr. Patrick Hayes, and Dr. Ricardo Mata- Gonzalez. I want to

Molecular mechanisms underlying the high oleic acid phenotype in sunflower

Creator:: Schuppert, Gunnar Felix
Abstract:: Wildtype sunflower typically produces 12-24% oleic acid (18:1) and 70-82% linoleic acid (18:2). High-oleic sunflower, by contrast, produces up to 80-94% oleic acid. The monounsaturated oleic acid has a greater oxidative stability than the polyunsaturated linoleic acid, predominant in wildtype sunflower, and has greater nutritional benefits than polyunsaturated and saturated...
Resource Type:: Dissertation
Full Text:: members of my graduate committee, Dr. James C. Carrington, Dr. Patrick M. Hayes, Dr. Oscar Riera-Lizarazu

Understanding epistasis in linkage analysis : The Kap and lks2 loci in the Oregon Wolfe Barley poputlation

Creator:: McCoy, Serena B.
Abstract:: An organisms' genotype may not be reflected in its phenotype. For example, epistasis - the interaction of non-allelic genes can cause deviations from expected phenotypic ratios. The epistatic interaction between the hooded (Kap) and short-awned (lks2) loci in barley (Hordeum vulgare) precludes the localization of the Kap locus, based on...
Resource Type:: Undergraduate Thesis

ScholarsArchive@OSU

Breeding Snap Beans for Organic Agriculture: Genomic Shifts under Different Agricultural Management Systems

Identification and distribution of the mating-type locus and development of cleistothecia of Podosphaera macularis

Applications in plant breeding : end-use quality, tissue culture propagation systems, and outreach for K-12 education

Farmer perspectives on the transition to organic agriculture : an Oregon study of farmer motivations and barriers

Expression and Function of Populus Homologs to TERMINAL FLOWER 1 Genes: Roles in Onset of Flowering and Shoot Phenology

Investigating the Quality Dynamics of American Aroma Hops Intended for Dry-Hopping Beer

Crossing behavior, RAPD analysis and chlorophyll flourescence in relationship to the geographic adaption of birdsfoot trefoil (Lotus corniculatus L.)

Frequency, Distribution, Ploidy Diversity and Control Options of Herbicide Resistant Italian Ryegrass (Lolium perenne L. spp. multiflorum (Lam.) Husnot) Populations in Western Oregon

Molecular mechanisms underlying the high oleic acid phenotype in sunflower

Understanding epistasis in linkage analysis : The Kap and lks2 loci in the Oregon Wolfe Barley poputlation

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