Index Catalog // ScholarsArchive@OSU

The influence of herbicides, phosphorus fertilization, and mechanical and chemical seedbed preparation on the establishment of alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus conrniculatus L.)

Creator:: Valdes Lamar, Ramon
Abstract:: Initial establishment of legume forage crops is of prime importance in determining future forage and seed production. The objective of this study was to determine the influence of herbicides, phosphorus fertilization, and seedbed preparation on the establishment of alfalfa and birdsfoot trefoil. Experiments were designed to study the influence of...
Resource Type:: Masters Thesis
Full Text:: . William Chilcote who served on my graduate advisory committee. Appreciation is also extended to many

Factors influencing the herbicidal activity of dimethyl 2,3,5,6-tetrachloroterephthalate

Creator:: McKinley, James Raleigh
Abstract:: Studies were conducted to determine the site of DCPA toxicity on annual ryegrass. This was done by means of a technique which used pyrex tubing and a vapor barrier to separate exposure of coleoptile and roots of emerging grass seedlings to various concentrations of DCPA. Coleoptiles that emerged through treated...
Resource Type:: Masters Thesis
Full Text:: reading and correction of the manuscript. Dr. William W. Chilcote, who served on my graduate advisory

The influence of magnesium on the toxicity of atrazine

Creator:: Brenchley, Ronald Glenn
Abstract:: Atrazine is an asymmetrical s-triazine herbicide used pre- and post emergence for weed control in many crops. Triazine herbicides have been used in the Pacific-Northwest for weed control in orchard crops. Under certain conditions where trees were grown in nutrient deficient areas, it was noted that toxic symptoms due to...
Resource Type:: Masters Thesis
Full Text:: . To Dr . William W. Chilcote, who served on my graduate advisory committee. To Drs. Harold J

Influence of soil moisture on the movement of bromacil in soil

Creator:: Ross, Claude Gray
Abstract:: In previous research, bromacil gave good performance when it was applied in early fall with fairly dry soil conditions and before the fall germinating weeds had started growth. On the other hand, if bromacil was applied in late November, December, or January on nearly saturated soil with weeds that had...
Resource Type:: Masters Thesis
Full Text:: Dr. William W. Chilcote, who served on my graduate advisory committee. Special thanks go to Larry

Time effect of wild oat removal on winter wheat yield

Creator:: Abu-Irmaileh, Barakat Eid Ahmad
Abstract:: The extent of the competitive effect of wild oats on winter wheat yield was estimated in field studies on three commercial wheat farms in the Willamette Valley. The morphological development of the wild oat plants was also documented. Wild oats were removed from stands of wheat in six different treatments;...
Resource Type:: Masters Thesis
Full Text:: on my committee; thanks also to Dr. William Chilcote for serving on my committee. TABLE OF

Plant communities in the old-growth forests of North Coastal Oregon

Creator:: Hines, William W. (William Wester)
Abstract:: This study was conducted in the old-growth forests of Clatsop, Tillamook, and Lincoln counties, Oregon. The three objectives of the research were to describe and classify the near-climax plant communities found within the forests, to relate the associes described by a previous study to the forest communities characterized by the...
Resource Type:: Masters Thesis
Full Text:: . William W. Chilcote and A. H. Winward provided additional guidance and editorial assistance. The Oregon

Growth and reproductive development in selected cultivars of Kentucky bluegrass given different durations of exposure to floral inductive conditions

Creator:: Turner, J. Kevin
Abstract:: Kentucky bluegrass (Poa pratensis L.) cultivars are known to differ quantitatively in their photothermal floral inductive requirements. The extent to which these requirements are met influences the potential for subsequent panicle exsertion. A better understanding of the inductive requirements as they vary among cultivars would aid in the selection and...
Resource Type:: Masters Thesis
Full Text:: William Chilcote for their interest as advisors on the graduate committee. For valued suggestions and

Interaction of cycloate with postemergence herbicides on sugarbeets and weeds

Creator:: Olson, Phillip David Leroy
Resource Type:: Masters Thesis
Full Text:: manuscript and for serving on my graduate committee. To Dr. William W. Chilcote for serving on my graduate

The control of colonial bentgrass (Agrostis tenuis Sibth.) with N-(phosphonomethyl) glycine

Creator:: Brewster, Bill D.
Resource Type:: Masters Thesis
Full Text:: . William W. Chilcote for serving on the examining committee. To Mr. Harold L. Schudel for providing the

Taxomony and mycorrhizal ecology of the desert truffles in the genus Terfezia

Creator:: Alsheikh, Abdulmagid M.
Abstract:: Mycorrhizal fungi in arid and semiarid rangelands have received little study in southwest Asia and north Africa, although they are important in food production and rangeland productivity. The desert truffles of the genera Terfezia and Tirmania form fruiting-bodies and mycorrhizae with rangeland plants. This thesis treats the taxonomy and the...
Resource Type:: Dissertation
Full Text:: . William Denison, William Chilcote and Robert Linderman for their guidance and support, and for serving

ScholarsArchive@OSU

The influence of herbicides, phosphorus fertilization, and mechanical and chemical seedbed preparation on the establishment of alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus conrniculatus L.)

Factors influencing the herbicidal activity of dimethyl 2,3,5,6-tetrachloroterephthalate

The influence of magnesium on the toxicity of atrazine

Influence of soil moisture on the movement of bromacil in soil

Time effect of wild oat removal on winter wheat yield

Plant communities in the old-growth forests of North Coastal Oregon

Growth and reproductive development in selected cultivars of Kentucky bluegrass given different durations of exposure to floral inductive conditions

Interaction of cycloate with postemergence herbicides on sugarbeets and weeds

The control of colonial bentgrass (Agrostis tenuis Sibth.) with N-(phosphonomethyl) glycine

Taxomony and mycorrhizal ecology of the desert truffles in the genus Terfezia

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