Index Catalog // ScholarsArchive@OSU

The effects of inbreeding in a flock of Hampshire sheep

Creator:: Lamberson, William Russell
Abstract:: A registered flock of Hampshire sheep that had been predominantly closed for approximately 30 years was utilized to study the effects of inbreeding on productivity of the 1980 and 1981 lamb crops. Five generation pedigrees for ewes and rams were used to calculate inbreeding coefficients. The median inbreeding coefficient of...
Resource Type:: Masters Thesis
Full Text:: period and for his continuing friendship. I thank my committee members, Drs. William D. Hohenboken and

The DEERHORN case study: a production and cost analysis of a single-grip harvester and small cable yarder performing a thinning/salvage operation in eastern Oregon.

Creator:: Brown, Cameron G.
Abstract:: Land managers in the Blue Mountains of eastern Oregon are currently faced with large areas of forest with health problems and extreme levels of fuel loading in the stand and on the forest floor. These conditions resulted from a combination of insect infestations, past management practices and the elimination of...
Resource Type:: Capstone Project

Soil compaction on a mechanized timber harvest operation in eastern Oregon

Creator:: Zaborske, Richard R.
Abstract:: The use of mechanized harvest equipment has been increasing as an economical method to harvest small diameter timber. While the use of this equipment is increasing, little is known about associated soil compaction. In particular, little information exists on soil compaction caused by feller--bunchers. This study measured soil compaction caused...
Resource Type:: Capstone Project

Cuphea wrightii tolerance to selected herbicides

Creator:: Cherif, Raouf
Resource Type:: Masters Thesis
Full Text:: committee members Drs. Arnold P Appleby, Ray D William, and Thomas E Bedell for their time and suggestions

The influence of the diurnal variation of stability on potential evaporation

Creator:: Ek, Michael Bryan
Abstract:: A method of calculating surface evapotranspiration by separately including the effects of vegetation and atmospheric evaporative demand under the condition of nonlimiting soil moisture is presented. A literature survey is conducted to determine the effects of plants on evapotranspiration. To represent the atmospheric evaporative demand, the original potential evaporation equation...
Resource Type:: Masters Thesis
Full Text:: members of my committee, Drs. Lyle D. Calvin, Hua-Lu Pan, and William MeDougal. Thanks also to Chris

Impact of cover crops on weed abundance and nitrogen contribution in broccoli, Brassica oleracea var. italica, production systems in the maritime Pacific Northwest

Creator:: Angustia, Segundo Nova
Resource Type:: Masters Thesis
Full Text:: project. I thank Dr. Delbert D. Hamphill, Dr. Richard P. Dick, Dr. Timothy Righetti, and Dr. William

The effects of plant population and nitrogen on sweet corn yields

Creator:: Moss, Joe Dick
Abstract:: The response of sweet corn (Zea mays L. var. rugosa cultivar Jubilee) to 12 populations and four nitrogen rates was studied in a field experiment. Populations ranged from 43, 904 to 329,800 plants/ha with nitrogen levels ranging from 0 to 224 Kg/ha. A systematic spacing design was used. Plant height,...
Resource Type:: Masters Thesis
Full Text:: . Recognition is also given to Dr. Michael H. Chaplin, Dr. William W. Chilcote, and Dr. Murray D

Structure, abundance, and distribution of pelagic zooplankton in a deep, oligotrophic Caldera Lake

Creator:: Karnaugh, Elena N.
Abstract:: From July 1985 to April 1987 the pelagic zooplankton community of Crater Lake, Oregon was studied to determine taxonomic structure, absolute and relative densities, and spatial and temporal distributional patterns. Samples were collected using vertically-towed zooplankton nets. The community structure consisted of two cladoceran and nine rotifer species, which were...
Resource Type:: Masters Thesis
Full Text:: in some years and rare in others. During this study, D. pulicaria abundances were low but appeared

Chemical suppression of a perennial ryegrass (Lolium perenne) living mulch and influence of ground cover management on growth of 'Chardonnay' wine grapes (Vitis vinifera) and Douglas fir Christmas trees (Pseudotsuga menziesii)

Creator:: Brenner, Loretta K.
Resource Type:: Masters Thesis
Full Text:: to thank my committee members, Drs. Garvin Crabtree, Porter B. Lombard, M.T. AliNiazee, Ray D

An application of transfer function and econometric procedures to employment impact analysis: Grant County, Oregon

Creator:: Lin, Tsae-yun Daphne
Abstract:: This study centered upon two objectives. First, to demonstrate and apply a statistical method, the transfer function, and to test its usefulness in regional economic modeling and regional impact ana1ysis; and second, to obtain a better understanding of the causal relationships among total employment, government employment, lumber and wood products...
Resource Type:: Masters Thesis
Full Text:: other members of my committee, Dr. William G. Brown, Dr. H. D. Brunk, Dr. Victor T. Neal, and Dr

ScholarsArchive@OSU

The effects of inbreeding in a flock of Hampshire sheep

The DEERHORN case study: a production and cost analysis of a single-grip harvester and small cable yarder performing a thinning/salvage operation in eastern Oregon.

Soil compaction on a mechanized timber harvest operation in eastern Oregon

Cuphea wrightii tolerance to selected herbicides

The influence of the diurnal variation of stability on potential evaporation

Impact of cover crops on weed abundance and nitrogen contribution in broccoli, Brassica oleracea var. italica, production systems in the maritime Pacific Northwest

The effects of plant population and nitrogen on sweet corn yields

Structure, abundance, and distribution of pelagic zooplankton in a deep, oligotrophic Caldera Lake

Chemical suppression of a perennial ryegrass (Lolium perenne) living mulch and influence of ground cover management on growth of 'Chardonnay' wine grapes (Vitis vinifera) and Douglas fir Christmas trees (Pseudotsuga menziesii)

An application of transfer function and econometric procedures to employment impact analysis: Grant County, Oregon

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