Index Catalog // ScholarsArchive@OSU

A comparison of vegetation suppression and sod-seeding methods using perennial ryegrass in renovation of non-irrigated permament pastures in western Oregon

Creator:: Neumeister, John H.
Abstract:: Sod-seeding techniques offer graziers a convenient way to introduce superior grass cultivars into underproductive permanent pastures. Production loss and erosion are minimized. In conjunction with improved grazing management and fertilization, renovation can significantly improve yield and quality of pastures. Existent vegetation must be suppressed prior to introducing new cultivars. This...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Crop Science presented on March 10, 1994. Title: A Comparison of

Pasture renovation with herbicide suppression of weeds and no-till seeding of orchardgrass

Creator:: Fitzsimmons, James P.
Abstract:: No-till pasture renovation can increase the quality and forage yield of underproductive pastures. Decreased erosion, lower costs, and less lost grazing time are advantages of no-till renovation compared to conventional renovation. Unwanted vegetation is first controlled with herbicides to decrease competition for introduced orchardgrass. Two field trials were conducted using...
Resource Type:: Masters Thesis
Full Text:: thesis. I also thank Larry for the other opportunities he allowed me to become involved in. A special

A study of methods of parental evaluation using testers to predict subsequent progeny performance in winter wheat (Triticum aestivum L.)

Creator:: Alexander, William Larry
Abstract:: The major objective of this study was to determine why certain winter wheat cultivars, when hybridized, will produce a greater proportion of desirable plants in subsequent, segregating generations. Three winter wheat parents were chosen as the experimental material, based on their known performance as parents. Yamhill and Pullman Selection 101...
Resource Type:: Dissertation
Full Text:: Subsequent Progeny Performance in Winter Wheat (Triticum aestivum L. ) by William Larry Alexander A

Sweet corn (Zea mays) production in a white clover (Trifolium repens) living mulch : the second year

Creator:: Peterman, Mark K.
Abstract:: Soil-related problems common to Oregon farmers are erosion, compaction, organic matter depletion, and nutrient loss. High costs of fertilizer, fuel, and weed control are additional management problems. Growing a secondary crop as a living mulch with a primary crop may ease some of these problems. Sweet corn production in Oregon...
Resource Type:: Masters Thesis
Full Text:: Sweet corn (Zea mays) production in a white clover

Sweet corn (Zea mays L.) production in a white clover (Trifolium repens L.) living mulch : the establishment year

Creator:: Cooper, Alan S.
Abstract:: Oregon sweet corn growers face high fertilizer, fuel and weed control costs; soil compaction, erosion, organic matter and nutrient depletion; and difficult equipment operations in muddy fields. An alternative production system might ease some of these problems. Testing was begun to evaluate a living-mulch cropping system for sweet corn (Zea...
Resource Type:: Masters Thesis
Full Text:: Sweet corn (Zea mays L.) production in a white clover

Persistence and accumulation of clopyralid (3,6-dichloropicolinic acid) in soil

Creator:: Tanphiphat, Karin
Abstract:: Field studies were started at Hyslop Farm, Corvallis, Oregon in 1984 to determine the soil persistence of the herbicide clopyralid (3,6-dichloropicolinic acid) under cropping situations. The herbicide was sprayed on bare soil at the proposed use rate of 0.14 kg/ha in the spring and on the same plots at a...
Resource Type:: Masters Thesis
Full Text:: -dichloropicolinic acid) in Soil Abstract approved: Redacted for Privacy Larry C. Burrill Field studies were

Cuphea wrightii tolerance to selected herbicides

Creator:: Cherif, Raouf
Resource Type:: Masters Thesis
Full Text:: Privacy v Larry C. Burrill The medium-chain triglyceride (MCT) oils, capric, caprylic, and lauric are

Germination and growth characteristics of five accessions of jointed goatgrass (Aegilops cylindrica)

Creator:: Gleichsner, Jean A.
Abstract:: Laboratory and field studies were conducted at Pendleton, Oregon, during 1983 and 1984 to evaluate germination and growth characteristics of five jointed goatgrass (Aegilops cylindrica Host) accessions collected from sites in Echo, Ione, Pendleton, Condon, and Elgin, Oregon. Spikelets were germinated for 27 days at room (23 +̲ 2 C)...
Resource Type:: Masters Thesis
Full Text:: gained the ability to respond to a wider range of temperatures. At the same time, germination rate and

Response of Cuscuta campestris and Cuscuta indecora to glyphosate applied after attachment to alfalfa (Medicago sativa)

Creator:: Fessehaie, Rezene
Abstract:: The response to glyphosate [N-(phosphonomethyl) glycine] of two dodder species Cuscuta campestris Yuncker (field dodder) and Cuscuta indecora Chiosy (largeseed dodder) parasitizing alfalfa (Medicago sativa L.) was compared. In the absence of glyphosate, alfalfa was killed or severely injured by parasitism from uncontrolled dodder. Results of field experiments in which...
Resource Type:: Masters Thesis
Full Text:: (Medicago sativa). Abstract approved: Redacted for privacy Redacted for privacy Larry C Burrill jtan H

Integrating real-time weather data with dynamic crop development models

Creator:: Donaldson, William S.
Abstract:: Crop development models are commonly used in research. However, their use as crop management tools for growers is rare. Decision support systems (DSS), which combine crop models with expert systems, are being developed to provide management assistance to growers. Researchers at Oregon State University are in the process of developing...
Resource Type:: Masters Thesis
Full Text:: process of developing a DSS. Research was conducted to develop a computer program to provide current and

ScholarsArchive@OSU

A comparison of vegetation suppression and sod-seeding methods using perennial ryegrass in renovation of non-irrigated permament pastures in western Oregon

Pasture renovation with herbicide suppression of weeds and no-till seeding of orchardgrass

A study of methods of parental evaluation using testers to predict subsequent progeny performance in winter wheat (Triticum aestivum L.)

Sweet corn (Zea mays) production in a white clover (Trifolium repens) living mulch : the second year

Sweet corn (Zea mays L.) production in a white clover (Trifolium repens L.) living mulch : the establishment year

Persistence and accumulation of clopyralid (3,6-dichloropicolinic acid) in soil

Cuphea wrightii tolerance to selected herbicides

Germination and growth characteristics of five accessions of jointed goatgrass (Aegilops cylindrica)

Response of Cuscuta campestris and Cuscuta indecora to glyphosate applied after attachment to alfalfa (Medicago sativa)

Integrating real-time weather data with dynamic crop development models

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