Index Catalog // ScholarsArchive@OSU

Creator:: Stang, Jack Rudolf
Abstract:: The effects of plant population densities on the growth and development of six cultivars of bush snap beans (Phaseolus vulgaris L.) were studied in two field experiments. A systematic planting design was used to achieve a range of densities from 21- to 110 plants per m² and a rectangularity of...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF JACK RUDOLF STANG for the degree

Creator:: Parreira, Stephanie
Abstract:: Honey bees (Apis mellifera) are responsible for approximately $17 billion in crop production per year in the United States, and are arguably the most important pollinators in the nation. The future of crop pollination and production is threatened by widespread national honey bee colony losses, which have averaged approximately 30%...
Resource Type:: Masters Thesis
Full Text:: Jepson, Dr. Jeff Jenkins, Dr. Jennifer Parke, and Dr. Louisa Hooven; and the professors who provided

Creator:: Flores, Salvador M.
Abstract:: The azalea lace bug (Stephanitis pyrioides Scott) is a recently detected invasive pest to the Pacific Northwest and has become a major concern in Oregon. It feeds on azaleas as well as rhododendrons causing stippling on the top side of leaves. The damage is aesthetically displeasing and affects plant vigor...
Resource Type:: Masters Thesis
Full Text:: observations at Jenkins Estate...... 54 3.2 Average S. pyrioides mortality rate for each cultivar

Creator:: Howland, Amanda D.
Abstract:: A major constraint to the production of self-rooted wine grapes (Vitis vinifera) in eastern Washington is plant-parasitic nematodes. Plant-parasitic nematodes can impact grape productivity by limiting water and nutrient uptake, educing physiological changes, and extracting plant nutrients from roots, thereby reducing root biomass, plant vigor, and yield. The most commonly...
Resource Type:: Masters Thesis

Creator:: Valverde, Roberto
Abstract:: Frost injury is one of the major factors limiting potato production in many parts of the world. It would be desirable to transfer the frost-tolerance traits from the hardy relatives to the cultivated potato, however, progress has been very slow. Since Solanum commersonii has been the major source of frost...
Resource Type:: Dissertation
Full Text:: apparently affected by numerous genes (Gullord et al., 1975; Hummel et al., 1982; Law and Jenkins, 1970

Creator:: Bonanno, A. Richard
Abstract:: Field experiments were conducted in 1981 and 1982 to develop a method for using remotely measured leaf canopy-air temperature differences (stress-degree-days (SDD)) to schedule irrigations and to evaluate the effects of differential irrigation on snap bean cultivars, 'Oregon 1604' and 'Galamor'. Effects on soil water potential (SWP), leaf water potential...
Resource Type:: Dissertation
Full Text:: Chilcote, and Dr. Jack Stang for their advice and generous loan of equipment. Gratitude is due to

Creator:: Park, Hayley E.
Abstract:: Improving crop cultivars for use on organic farms is pertinent, as current elite germplasm is less resilient within the more variable context of organic farm environments. Although a growing number of studies have focused on organic plant breeding in cereal crops, very few have focused on vegetable crops, especially those...
Resource Type:: Masters Thesis
Full Text:: . Lastly, I would like to express my deep gratitude for my partner, Jack Richardson. His steady support

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