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

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

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

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

Uncovering Biological Meaning From Genome-Scale Datasets: A Challenge and an Opportunity

Creator:: Wanzeck, Kelley M.
Abstract:: As DNA sequencing technologies continue to advance, resulting in increased throughput and decreased costs, both the number of researchers utilizing these technologies and the quantity of data outputted by a single sequencing experiment will, likewise, continue to increase. Currently, DNA sequence data can be generated at a much faster rate...
Resource Type:: Capstone Project
Full Text:: - AN ABSTRACT OF THE FINAL REPORT OF Kelley M. Wanzeck For the degree of Professional Science

Annual Forages Differ in Response to Partial-Season Irrigation Deficit in Both Spring Seeded and Summer Seeded Cropping Systems

Creator:: Fan, Qianqian
Abstract:: Water scarcity during summer becomes a serious problem in the Pacific Northwest, threatening forage production provided to livestock. Annual forages show great potential in handling drought because of their flexibility in seeding date and short growing season, and can shift the production to periods of feed shortage and fill the...
Resource Type:: Masters Thesis
Full Text:: . Serkan Ates, Dr. David Bohnert, and Dr. Patrick Hayes, and my graduate council representative Dr

The potential role of aliphatic gamma- and delta-lactones in beer fruit aroma

Creator:: Hotchko, Rachel Ann
Abstract:: This work set out to examine the potential contribution of five aliphatic lactones, γ-nonalactone, γ-decalactone, γ-dodecalactone, δ-decalactone and δ-dodecalactone to stone fruit aroma in beer. This work consists of three related studies; lactone olfaction thresholds, additive/synergistic aroma effects and a gas-chromatography-mass-spectrophometry method of analysis. First was the determination of these...
Resource Type:: Masters Thesis

Transfer, characterization and mapping of white mold resistance in an advanced backcross interspecific population between Phaseolus vulgaris and Phaseolus coccineus

Creator:: Zimmerman, Shawna Jean
Abstract:: The advanced backcross-quatitative trait loci (AB-QTL) breeding method was employed on snap bean (OR 91G x PI433251B) and dry bean (M0162 x PI433251B) interspecific populations to transfer resistance QTL from resistant donor parent Phaseolus coccineus into P. vulgaris. For OR 91G x PI433251B, analyses produced nine linkage groups corresponding to...
Resource Type:: Masters Thesis
Full Text:: complete this project. I am also very grateful to Dr. Nahla Bassil and Dr. Patrick Hayes for serving on

Modern Wheat Breeding: Next Generation Sequencing and CRISPR Transformation

Creator:: Brandt, Kali M.
Abstract:: Wheat (Tritium aestivum) is an extremely important crop worldwide. It accounts for almost one quarter of the calories consumed each day by more than one third of the world’s population, and is grown over more land area than any other crop. Wheat breeding programs constantly strive to increase or maintain...
Resource Type:: Dissertation
Full Text:: OF THE DISSERTATION OF Kali M. Brandt for the degree of Doctor of Philosophy in Crop Science

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

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

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

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

Uncovering Biological Meaning From Genome-Scale Datasets: A Challenge and an Opportunity

Annual Forages Differ in Response to Partial-Season Irrigation Deficit in Both Spring Seeded and Summer Seeded Cropping Systems

The potential role of aliphatic gamma- and delta-lactones in beer fruit aroma

Transfer, characterization and mapping of white mold resistance in an advanced backcross interspecific population between Phaseolus vulgaris and Phaseolus coccineus

Modern Wheat Breeding: Next Generation Sequencing and CRISPR Transformation

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