Index Catalog // ScholarsArchive@OSU

Creator:: Vernoff, Suellen
Abstract:: Both Leperisinus oregonus and L. californicus are bark beetle species which emerge from Fraxinus latifolia brood logs as sexually immature adults and disperse to living ash. Occasional field observations suggest that, for overwintering and maturation feeding, L. oregonus enter trunks and branches, whereas L.; californicus enter twig crotches, buds and...
Resource Type:: Masters Thesis
Full Text:: provided by my committee: Dr. Roger Petersen, Statistics. Dept.; Dr. Gary Daterman, USDA Forestry Science

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

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

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

Creator:: Carrijo, Osmar Alves
Abstract:: The major objectives of this study were an evaluation of the Meteorological Office Rainfall and Evaporation Calculation System (MORECS) evapotranspiration (ET) model using the Penman-Monteith equation and comparison of the MORECS and measured surface resistance. Meteorological, soil and plant parameters were measured in an alfalfa field over two growing seasons....
Resource Type:: Dissertation
Full Text:: . Roger Petersen and Dr. David Carlson for their time and suggestions during the execution of this

Creator:: Karl, Michael G.
Abstract:: Reforesting harvested lands in southwestern Oregon has been difficult because of low rainfall, high evaporative demand, and competitive understory vegetation. Herbicides have been a preferred method to control competing vegetation but herbicide use on federal lands was curtailed in 1984. As a result, interest in livestock grazing as a vegetation...
Resource Type:: Dissertation
Full Text:: , Bill Krueger, Steve Tesch, Roger Petersen, and John Crawford (Graduate Representative). I want to

Creator:: Re, Jose Vicente
Abstract:: Influence of abiotic and biotic factors were examined in selected winter wheats previously identified as representing a range of responses to septoria infection. In the greenhouse two and three inoculations identified resistance when disease severity was assessed either for the top four leaves or the flag leaf respectively. Kernel number...
Resource Type:: Dissertation
Full Text:: . Thomas C. Allen, Dale Moss, A. L. Scharen, Roger Petersen, and Glenn Fisher for serving in my graduate

ScholarsArchive@OSU