Index Catalog // ScholarsArchive@OSU

Relationships between fish species distribution and habitat in the Willamette River drainage in western Oregon

Creator:: Kruse, Amy Ellen
Abstract:: The objectives of this study were to (1) describe physical environmental conditions and species composition at several sites along an Upstream/downstream gradient in a number of tributaries of the Willamette River in western Oregon; and (2) identify possible relationships between species distributional patterns and physical habitat parameters using detrended correspondence...
Resource Type:: Masters Thesis
Full Text:: graduate committee, Dr. Jim Hall and Dr. Roger Petersen for the opportunity to do this study and their

Estimates of genetic variance and heterosis in F₁ winter x spring barley crosses (Hordeum vulgare, L.)

Creator:: Harrabi, Moncef Mohamed
Abstract:: Four winter and four spring barley cultivars along with their F₁ hybrids were grown on the Hyslop Agronomy Farm near Corvallis, Oregon, a high rainfall site (over 1000 mm annually) located in the Willamette Valley. The experiment consisted of four replications. Ten seeds of each F₁ and parents were seeded...
Resource Type:: Masters Thesis
Full Text:: , and for serving on my committee. Appreciation is also extended to Dr. Roger Petersen for his help

Changes in size and age at maturity of Columbia River upriver bright fall chinook salmon (Oncorhynchus tshawytscha) : implications for stock fitness, commercial value, and management

Creator:: Beaty, Roy E.
Abstract:: The average size and age of chinook salmon (Oncorhynchus tshawytscha) caught in commercial fisheries along the Pacific Coast of North America have decreased substantially in this century. These declines might be caused in part by changes in size and age at maturity within the stocks contributing to those fisheries. Upriver...
Resource Type:: Masters Thesis
Full Text:: graduate committee members -- Dr. Roger Petersen (emeritus), Dr. Cliff Pereira, and particularly Dr. Phil

Characterization of Triticum turgidum ssp. carthlicum (Nevski) Löve et Löve by discriminant analysis

Creator:: Vieira, Luiz Gonzaga E.
Abstract:: Forty-six morphological characters were used in a study of Triticum turgidum ssp. carthlicum (2n = 28) and specimens of carthlicum-like forms of Triticum aestivum ssp. vulgare (2n = 42). The morphological variation patterns within these groups were examined using stepwise discriminant analysis. These results indicate that specimens studied could be...
Resource Type:: Masters Thesis
Full Text:: thank, too, Dr. Roger Petersen, Dr. Willis McCuistion, and Dr. Paul Doescher for accepting the

Inheritance of resistance to common bunt races T-23 and L-16 and association of bunt resistance with selected agronomic characters in a hybrid of Hohenheimer x Stephens wheat

Creator:: Kanbertay, Mesut
Resource Type:: Masters Thesis
Full Text:: friendship and duty during the first year of the study. I am indebted to Dr. Roger Petersen, Dr. Warren E

Biology of the myctophid fish, Diaphus theta Eigenmann and Eigenmann 1890, off the Oregon coast

Creator:: Acuna, Enzo S.
Resource Type:: Masters Thesis
Full Text:: to the members of my committee Drs. George Boehiert, Roger Petersen and David Thomas for their

A comparison of three systems of phenotypic selection for grain yield in three spring barley populations

Creator:: Hayes, Patrick M.
Abstract:: Concerns regarding the most effective means of evaluating segregating generations of spring barley prompted this investigation. Three methods of selection were considered: bulk, pedigree, and single seed descent. F₆ lines derived by each method were grown in a replicated yield trial. The effectiveness of each method was measured in terms...
Resource Type:: Masters Thesis
Full Text:: the members of my committee: Dr. Willis McCuistion, Dr. Roger Petersen, and Dr. Bruce Mackey. To

Relationships between oceanographic factors and the distribution of juvenile coho salmon (Oncorhynchus kisutch) off Oregon and Washington, 1982-1983

Creator:: Chung, Alton W.
Abstract:: Juvenile coho salmon (101-400 mm) were sampled by purse seine off the Pacific Coast from Waatch Point, Washington to Four Mile Creek, Oregon, out to 30 mi offshore, during the months of May, June, and September in 1982 and 1983. Sea surface temperature, surface salinity, surface chlorophyll-a concentration, and Secchi...
Resource Type:: Masters Thesis
Full Text:: , Jane Huyer, Roger Petersen, and Bruce Webber for their interest, helpful comments, and suggestions

An economic analysis of the demand for graduate education

Creator:: Khan, Ahmad Saeed
Abstract:: This study is an economic analysis of enrollment demand for graduate education at Oregon State University as well as in the United States. For the analysis of Oregon State University data on new graduate enrollment, data were obtained for 27 academic departments with 10 observations per department. The most important...
Resource Type:: Dissertation
Full Text:: committee members, including Dr. Bruce Rettig, Dr. William Brown, and Dr. Roger Petersen, provided

Biosystematic studies of Phacelia capitata (Hydrophyllaceae), a species endemic to serpentine soils in southwestern Oregon

Creator:: Shelly, J. Stephen
Abstract:: Phacelia capitata Rruckeberg is a member of the Phacelia magellanica polyploid complex (species group Magellanicae), a group of wide-ranging, polymorphic perennials in western North America related to the South American P. secunda (= P. magellanica). The purpose of this project was to determine, to the extent possible, the interrelationships of...
Resource Type:: Masters Thesis
Full Text:: Wilson, and Roger Petersen, for the careful reading of the thesis which they did on fairly short notice

ScholarsArchive@OSU

Relationships between fish species distribution and habitat in the Willamette River drainage in western Oregon

Estimates of genetic variance and heterosis in F₁ winter x spring barley crosses (Hordeum vulgare, L.)

Changes in size and age at maturity of Columbia River upriver bright fall chinook salmon (Oncorhynchus tshawytscha) : implications for stock fitness, commercial value, and management

Characterization of Triticum turgidum ssp. carthlicum (Nevski) Löve et Löve by discriminant analysis

Inheritance of resistance to common bunt races T-23 and L-16 and association of bunt resistance with selected agronomic characters in a hybrid of Hohenheimer x Stephens wheat

Biology of the myctophid fish, Diaphus theta Eigenmann and Eigenmann 1890, off the Oregon coast

A comparison of three systems of phenotypic selection for grain yield in three spring barley populations

Relationships between oceanographic factors and the distribution of juvenile coho salmon (Oncorhynchus kisutch) off Oregon and Washington, 1982-1983

An economic analysis of the demand for graduate education

Biosystematic studies of Phacelia capitata (Hydrophyllaceae), a species endemic to serpentine soils in southwestern Oregon

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