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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:: 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:: Das, Modan Kumar
Resource Type:: Dissertation
Full Text:: committee Drs. Patrick M. Hayes, Christopher C. Mundt, Roger G. Petersen, David R. Thomas, and Thomas E

Creator:: Mou, Beiquan
Abstract:: The lack of information regarding the inheritance of the duration and rate of grain filling, and the possible relationship between grain fill and grain protein content in wheat prompted this study. Early maturing Chinese cultivars, 'AI Feng 2' and 'CB 83-52', and late maturing cultivars adapted to Oregon, 'Stephens' and...
Resource Type:: Dissertation
Full Text:: extended to Drs. Pat M. Hayes, Roger G. Petersen, David R. Thomas, Larry S. Daley, and Glenn Fisher for

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