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Plant succession on two Artemisia habitat types in southeastern Oregon

Creator:: Tueller, Paul T., 1934-
Resource Type:: Dissertation
Full Text:: vegetation with scattered specimens of Juniperus occidentalis. ti t- -- -- - -#114-4eCtt,:t4.10-Air

Vegetation and animal responses to grazing crested wheatgrass at three intensities and two seasons in southern Idaho

Creator:: Sharp, Lee Ajax
Abstract:: Land useable for livestock grazing in the western United States is diminishing because of spreading municipalities, irrigation developments, highway construction, recreational demands and withdrawals. Concurrently, the demand for livestock and livestock products is increasing because of a rapidly growing population. As a result, production from the grazing land that remains...
Resource Type:: Dissertation
Full Text:: obtained from members of the writer's graduate committee, Drs. W. W. Chilcote, T. M. Ching, E. G. Knox

Vegetation changes of communities containing medusahead (Taeniatherum asperum (Sim.) Nevski) following herbicide, grazing, and mowing treatments

Creator:: Turner, Robert Bruce
Abstract:: Studies were conducted from 1962 to 1966 to investigate the effectiveness of several practices in manipulating medusahead (Taeniatherum asperum (Sim. ) Nevski) infested and/or dominated ecosystems by releasing competition in favor of perennial grasses. Several herbicide treatments were evaluated for selective control of medusahead and cheatgrass (Bromus tectorum L. )...
Resource Type:: Dissertation
Full Text:: . Chester T. Youngberg, Soils Department; and Dr. Ernest M. Dickinson, who represented the Graduate School

Seasonal cattle and sheep diets on Festuca arundinacea-Trifolium subterraneum and Lolium perenne-Trifolium subterraneum pastures in western Oregon

Creator:: Bedell, Thomas E.
Abstract:: Sheep and cattle dietary preferences were determined on tall fescue-subclover ( Festuca arundinacea-Trifolium subterraneum) and perennial ryegrass-subclover (Lolium perenne-Trifoliuni subterraneum) pastures in western Oregon during the spring and summer periods of 1964 and 1965. Esophageal-fistulated Willamette ewes and Hereford and Hereford-Angus yearling cattle were grazed separately on each pasture mixture...
Resource Type:: Dissertation
Full Text:: Dr. C. E. Poulton, Dr. W. S McGuire, Dr. J. E. Oldfield and Dr. A. T. Ralston is gratefully

The interaction of polylysine with DNA as studied by polarization of flurescence

Creator:: Evett, Jay Fredrick
Abstract:: A fluorescent dye, 1-dimethylaminonaphthalene-5-sulfonyl chloride (dansyl chloride), was covalently bonded to polylysine. The dansyl tagged polylysine was complexed to DNA by gradient dialysis. The polarization and intensity of fluorescence of the dansyl and the turbidity of the complex were measured as a function of salt concentration for a variety of...
Resource Type:: Dissertation
Full Text:: dissociation curve of a complex of polylysine with A- T rich salmon sperm DNA appears to be nearly identical

Distribution of recent foraminifera in relation to estuarine hydrography, Yaquina Bay, Oregon

Creator:: Manske, Douglas Charles
Abstract:: The foraminiferal population of Yaquina Bay was investigated to attempt a correlation of seasonal changes in the hydrography with observed changes in the faunal distribution patterns. The results are based on data from two spatial surveys conducted in July 1966, and late February and March, 1967. The hydrography of Yaquina...
Resource Type:: Dissertation
Full Text:: . Trochammina inflata, T. macrescens, Miliammina fusca, Jadamminina polystoma, Haplophragmoides sp., H

Vegetation-soil relations as a basis for resource management on the Ochoco National Forest of central Oregon

Creator:: Hall, Frederick C.
Abstract:: The study was conducted on the Ochoco National Forest in central Oregon. Vegetation-soil relationships were evaluated for the following objectives: 1. Develop a sound ecological foundation on which total land management decisions may be based. 2. Evaluate forest succession, stocking, and growth to improve management. 3. Develop accurate range condition...
Resource Type:: Dissertation
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Formation and stability of Al, Fe, and Mg interlayers in montmorillonite and vermiculite

Creator:: Carstea, Dumitru Dumitru
Abstract:: The effects of pH and time on the formation of hydroxy-Al, Fe, and Mg interlayer were compared for montmorillonite and vermiculite. The stability of interlayers was evaluated by sequentially increasing the severity of dissolution treatments and by subjecting the inter-layers to an HC1 treatment. The interlayer formation and stability were...
Resource Type:: Dissertation
Full Text:: ground in an Osterizer blender for about two minutes. Mackenzie and Milne (1953) reported that

Optimization of the continuous analysis Pearl-Benson method for lignosulfonates

Creator:: Blaine, Roger Lee
Abstract:: A procedure is described for the optimization of a previously described continuous analysis adaptation of the Pearl-Benson or nitroso method for estimation of spent sulfite liquor (SSL) or ligno-sulfonates. The optimized procedure has a response time of 6.5 minutes. In order to monitor samples whose SSL concentration is between 0...
Resource Type:: Dissertation
Full Text:: .100 .000 1 t j 1 0.0 0. 5 1.0 formality of acetic acid Figure 3. Dependence of color intensity on

Forage production and utilization in a mixed conifer forest in the Wallowa Mountain foothills

Creator:: Young, James A. (James Albert), 1937-
Abstract:: This investigation was undertaken to characterize and evaluate the forage production and utilization of the successional vegetation of the mixed conifer forest. Field studies were carried out during the summers of 1962 through 1964 at the Eastern Oregon Experiment Station Hall Ranch which is located 12 miles southeast of Union,...
Resource Type:: Dissertation
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ScholarsArchive@OSU

Plant succession on two Artemisia habitat types in southeastern Oregon

Vegetation and animal responses to grazing crested wheatgrass at three intensities and two seasons in southern Idaho

Vegetation changes of communities containing medusahead (Taeniatherum asperum (Sim.) Nevski) following herbicide, grazing, and mowing treatments

Seasonal cattle and sheep diets on Festuca arundinacea-Trifolium subterraneum and Lolium perenne-Trifolium subterraneum pastures in western Oregon

The interaction of polylysine with DNA as studied by polarization of flurescence

Distribution of recent foraminifera in relation to estuarine hydrography, Yaquina Bay, Oregon

Vegetation-soil relations as a basis for resource management on the Ochoco National Forest of central Oregon

Formation and stability of Al, Fe, and Mg interlayers in montmorillonite and vermiculite

Optimization of the continuous analysis Pearl-Benson method for lignosulfonates

Forage production and utilization in a mixed conifer forest in the Wallowa Mountain foothills

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