Index Catalog // ScholarsArchive@OSU

Effects of timing and duration of flooding on phosphorus release in four restored wetlands around Agency and Upper Klamath Lakes, Oregon

Creator:: Stevens, Carla J.
Abstract:: Upper Klamath Lake (UKL) and Agency Lake in south-central Oregon are hypereutrophic due to phosphorus (P) loading from both geologic and agricultural sources in the watershed. Restoring historic lake-fringe wetlands to provide P sinks around the lakes has been accepted as a favorable means of reducing lake P levels and...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Carla J. Stevens for the degree of Master of Science in

Shore protection structures in Oregon : An analysis of demand and the implementation of engineering recommendations

Creator:: Chenault, Carla Diane and Chenault, Carla D.
Abstract:: Stabilization structures are the most commonly used form of shore protection along the Oregon coast. Eighty-five percent of the hard stabilization structures built in Oregon from 1976 – 1999 were riprap revetments. An evaluation was conducted of 143 riprap revetments in the northern three counties of Oregon. Clear trends exist...
Resource Type:: Capstone Project
Full Text:: and the Implementation of Engineering Recommendations by Carla Diane Chenault Project Report

The influence of herbivore generated inputs on nutrient cycling and soil processes in a lower montane tropical rain forest of Puerto Rico

Creator:: Fonte, Steven J.
Abstract:: The role of insect herbivores in the nutrient cycling dynamics of forest ecosystems remains poorly understood. Although past research in herbivory has focused primarily on the deleterious effects that insects can have on tree growth and mortality, the overall effects of herbivory are more complex. Herbivores have the potential to...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Steven J. Fonte for the

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:: Mechanisms Underlying the High Oleic Acid Phenotype in Sunflower Abstract approved: Steven J. Knapp

Genetics of tocopherol composition in sunflower seed

Creator:: Hass, Catherine G.
Abstract:: Tocopherols are plant secondary metabolites that are known collectively as vitamin E. Tocopherol compounds act as potent antioxidants by quenching free radicals and protecting fatty acids from oxidative damage. In humans (in vivo) tocopherols protect membrane lipids from breaking down, while in oils (in vitro) tocopherols protect fatty acids from...
Resource Type:: Masters Thesis
Full Text:: : Genetics of Tocopherol Composition in Sunflower Seed. Abstract approved: Steven J. Knapp Tocopherols

Breeding tools for Cuphea : An updated genetic linkage map and fatty acid mutant candidate gene analysis

Creator:: Powers, Carol Anne
Abstract:: Medium chain fatty acids (MCFAs) are important industrial feedstocks for soaps, detergents and surfactants. Interspecific lines derived from Cuphea lanceolata and Cup hea viscosissima are being domesticated as a temperate source of MCFAs. These species also serve as model organisms for understanding the biosynthesis of MCFAs in seeds. Various markers...
Resource Type:: Masters Thesis
Full Text:: accomplish all that I have in life. CONTRIBUTION OF AUTHORS Dr. Steven J. Knapp proposed and guided

Simple sequence repeat marker development and fingerprinting in Cuphea lanceolata Ait. and C. viscosissima Jacq

Creator:: Karmarkar, Vidyadhar M.
Abstract:: Microsatellites or simple sequence repeats (SSRs) are highthroughput sequence based DNA markers that have been exploited as tools for measuring genetic distance and diversity in evolutionary studies, protection of intellectual property, genetic resource conservation management, cultivar identification and molecular breeding of crop plants. We isolated and sequenced 1095 clones from...
Resource Type:: Masters Thesis
Full Text:: approved: Steven J. Knapp Microsatellites or simple sequence repeats (SSRs) are high- throughput

Single nucleotide polymorphism diversity in domesticated and wild sunflowers

Creator:: Freeman, Carrie
Abstract:: Single nucleotide polymorphisms (SNPs) are the most common DNA polymorphisms in plant and animal genomes. SNPs were identified in the allele sequences of up to 12 sunflower (Helianthus annuus L.) genotypes for a genome-wide sample of 81 loci originally mapped using restriction fragment length polymorphism (RFLP) markers. The RFLP loci...
Resource Type:: Masters Thesis
Full Text:: Diversity in Domesticated and Wild Sunflowers. Abstract approved: teven J. Knapp Single nucleotide

The acetohydroxyacid synthase gene family its role in herbicide resistant sunflowers

Creator:: Hawley, Robin M.
Abstract:: Resistance to acetohydroxyacid synthase (AHAS)-inhibiting herbicides has been reported in over 90 weedy species, including wild sunflower biotypes, since the herbicides were developed in 1982. The AHAS gene family in sunflower, consisting of three paralogs AHAS1 , AHAS2, and AHAS3, has been targeted for inducing herbicide resistance. A polymorphism identified...
Resource Type:: Masters Thesis

Describing the thermal regimes of two northeastern Oregon streams

Creator:: Raven, Sonja E.
Abstract:: Two tributaries of the south fork of the Burnt River, near Unity Oregon were studied during the summers of 2000 and 2001 to determine water heating and cooling patterns. Hourly temperature data were recorded for air, water, and soil parameters at four elevations 150m apart on Barney and Stevens Creeks....
Resource Type:: Masters Thesis
Full Text:: , water, and soil parameters at four elevations 150m apart on Barney and Stevens Creeks. Both creeks

ScholarsArchive@OSU

Effects of timing and duration of flooding on phosphorus release in four restored wetlands around Agency and Upper Klamath Lakes, Oregon

Shore protection structures in Oregon : An analysis of demand and the implementation of engineering recommendations

The influence of herbivore generated inputs on nutrient cycling and soil processes in a lower montane tropical rain forest of Puerto Rico

Molecular mechanisms underlying the high oleic acid phenotype in sunflower

Genetics of tocopherol composition in sunflower seed

Breeding tools for Cuphea : An updated genetic linkage map and fatty acid mutant candidate gene analysis

Simple sequence repeat marker development and fingerprinting in Cuphea lanceolata Ait. and C. viscosissima Jacq

Single nucleotide polymorphism diversity in domesticated and wild sunflowers

The acetohydroxyacid synthase gene family its role in herbicide resistant sunflowers

Describing the thermal regimes of two northeastern Oregon streams

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