Index Catalog // ScholarsArchive@OSU

Morphological variability and seed dormancy of Amelanchier (Rosaceae) grown in Oaxaca, Mexico

Creator:: Cruz-Cruz, Efrain
Abstract:: The purpose of this research was to determine whether hybridization between Amelanchier denticulata. (H.B.K.) Koch and Amelanchier nervosa (Decaisne) StandL occurs in Oaxaca, Mexico, and to evaluate components of yield and germination characteristics and seed dormancy of Amelanchier denticulata. Amelanchier nervosa and Amelanchier denticulata samples and morphological characters were used...
Resource Type:: Dissertation
Full Text:: . Aaron I. Liston (Department of Botany and Plant Pathology), Dr. Steven H. Sharrow (Department of

Management of stockpiled forages and optimal use of supplements by beef cattle while consuming low-quality forages

Creator:: Suverly, Norman A.
Abstract:: Three studies were conducted to evaluate: 1) rotationally grazed forage for late-summer stockpiling; 2) effects of lactation on self-fed supplement intake; and 3) influence of cow age on hand-fed supplement intake. For the first study, treatments consisted of non grazed, 2X and 3X grazed. Crude protein of forage grazed 3X...
Resource Type:: Masters Thesis
Full Text:: . Steven Sharrow, and Dr. Robert Van Saun are thanked for their time in serving on my committee. Western

A fistful of Astragalus : phenotypic and genotypic basis of the most taxon rich species in the North American flora

Creator:: Knaus, Brian J.
Abstract:: The study of the infra-specific ranks (i.e., subspecies and variety) can be considered the study of the process of speciation. Astragalus lentiginosus Douglas ex Hooker (Fabaceae) is the most taxon rich species in the U.S. flora currently including 40 taxonomic varieties. These varieties were described using traditional taxonomic methods primarily...
Resource Type:: Dissertation
Full Text:: , Mitch Cruzan, Tom Kaye and Steven Sharrow. The Cronn and Liston Lab groups: John Syring, Ann Wilyard

Seeing Genes: Multiscale Phenotyping Reveals Gene Functions in Maize Pollen

Creator:: Warman, Cedar D.
Abstract:: Plant sexual reproduction requires a broad array of molecular mechanisms to proceed successfully. Some of these mechanisms are well-studied, but our knowledge of them as a whole is fundamentally incomplete. Pollen tube growth is a key part of this process, facilitating the delivery of the sperm cells to the female...
Resource Type:: Dissertation
Full Text:: Imperative Style, High-Performance Deep Learning Library. In: Wallach H, Larochelle H, Beygelzimer A, et al

Projecting White Pine Blister Rust Hazard Ratings Under Climate Change in Southwestern Oregon

Creator:: Cicekli, Zeynep
Abstract:: Sugar pine and western white pine are widely distributed, economically valuable, and ecologically important native tree species in North America. However, white pine blister rust (WPBR), caused by a non-native fungal pathogen, Cronartium ribicola J.C. Fisch. in Rabh., has substantially affected populations of these species. Cronartium is an obligate parasite,...
Resource Type:: Masters Thesis
Full Text:: support throughout this research; my committee, Dr. Richard A. Sniezko, Dr. Steven Strauss, and Dr

Prompt gamma neutron activation analysis of niobium for characterization of light interstitials

Creator:: Love, Ian J.
Abstract:: High purity niobium metal is used in the construction of superconducting radio frequency (SRF) cavities in superconducting particle accelerators, such as the Large Hadron Collider (LHC) at CERN or the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory. The usual method for characterizing the impurities in this niobium, the...
Resource Type:: Masters Thesis
Full Text:: light interstitials (H, C, N, and O), and five “unknown” samples were analyzed to determine the

Functional decreases in hydraulic and mechanical properties of field-grown transgenic poplar trees caused by modification of the lignin synthesis pathway through downregulation of the 4-coumarate:coenzyme A ligase gene

Creator:: Voelker, Steven L.
Abstract:: Society uses massive quantities of wood fiber in production of paper, and demand for fiber is projected to increase further as production of biofuels from fermentation of plant cellulosic materials increases. Because these end uses generally require the costly step of removing of lignin, wood with reduced or more easily...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Steven L. Voelker for the degree of Doctor of Philosophy in Wood

Optical Spectroscopy of Laser-Produced Plasmas via Fiber Optics for Material Characterization

Creator:: Zhao, Yichen
Abstract:: Characterization of uranium isotope compositions is of great interest in many nuclear sub-areas for safeguards purposes. Reprocessing facilities utilizing pyroprocessing raised an issue of uranium isotope monitoring due to the difficulty to apply traditional approaches under extreme environments. An rapid and remote method to characterize uranium isotope compositions for such...
Resource Type:: Dissertation
Full Text:: help. I would also like to thank my committee members: Dr. Steven Reese, Dr. Qiao Wu, Dr. David Hamby

Yosemite region nitrogen deposition and patterns in the composition of lichen communities

Creator:: Hutten, Martin
Abstract:: This dissertation describes patterns in epiphytic macrolichen community composition along a nitrogen deposition gradient in the Yosemite region of the Sierra Nevada in California. This region is part of the largest federal air quality Class 1 designated air-shed in the western United States, covering the entire crest of the Sierra...
Resource Type:: Dissertation

Essays on conservation policies and agricultural nonpoint source pollution control

Creator:: Tanaka, Katsuya
Abstract:: This dissertation consists of three papers on agricultural nonpoint source pollution and control. The first paper focuses primarily on agricultural land use changes under alternative conservation policies. The second and third papers address environmental implications of these policies and their cost effectiveness. In the first paper, the effect of alternative...
Resource Type:: Dissertation

ScholarsArchive@OSU

Morphological variability and seed dormancy of Amelanchier (Rosaceae) grown in Oaxaca, Mexico

Management of stockpiled forages and optimal use of supplements by beef cattle while consuming low-quality forages

A fistful of Astragalus : phenotypic and genotypic basis of the most taxon rich species in the North American flora

Seeing Genes: Multiscale Phenotyping Reveals Gene Functions in Maize Pollen

Projecting White Pine Blister Rust Hazard Ratings Under Climate Change in Southwestern Oregon

Prompt gamma neutron activation analysis of niobium for characterization of light interstitials

Functional decreases in hydraulic and mechanical properties of field-grown transgenic poplar trees caused by modification of the lignin synthesis pathway through downregulation of the 4-coumarate:coenzyme A ligase gene

Optical Spectroscopy of Laser-Produced Plasmas via Fiber Optics for Material Characterization

Yosemite region nitrogen deposition and patterns in the composition of lichen communities

Essays on conservation policies and agricultural nonpoint source pollution control

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