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  • Quality of bluebunch wheatgrass (Agropyron spicatum) as a winter range forage for Rocky Mountain Elk (Cervus elaphus nelsoni) in the Blue Mountains of Oregon

    Creator:
    Bryant, Larry Duane
    Abstract:
    This research was conducted on three study areas on elk winter ranges in Northeast Oregon. One was on the Starkey Experimental Forest and Range and the others were in the same vicinity. Plant appendages, spring and fall defoliation and fall growth of bluebunch wheatgrass were evaluated in terms of quality...
    Resource Type:
    Dissertation
    Full Text:
    Vavra, Dr. John Buckhouse, Dr. Jack Ward Thomas and Dr. Bart Eleveld for their support, guidance and

  • Chemical composition studies of Oregon and Washington coastal basalts

    Creator:
    Hill, Dale Wayne
    Abstract:
    Basalts of both Eocene and Miocene age from several groups along the Oregon and Washington coasts have been analyzed for some major, minor, and trace elements using instrumental neutron activation analysis (INAA). The rare earth element (REE) patterns observed in these samples are used for comparisons within the groups studied...
    Resource Type:
    Masters Thesis
    Full Text:
    on the rough draft. Finally, . I wish to thank the members of my committee, Dr. Jack Corliss, Dr. T

  • Non-herbicidal effects of dinoseb on winter wheat yields

    Creator:
    Valverde, Bernal E.
    Abstract:
    A series of experiments were conducted from 1983 to 1985 to determine the effects of dinoseb [2-(1-methylpropyl)-4,6-dinitrophenol] on winter wheat (Triticum aestivum L. em Thell) yields. Field trials on dinoseb timing and dinoseb plus supplemental pesticides were established in an effort to elucidate the possible factors involved in the yield...
    Resource Type:
    Masters Thesis
    Full Text:
    . I thank the members of my graduate committee, Dr. Thomas Allen, Dr. David Chilcote, and Dr. Jack

  • Imaging fluorescent determination of energetics of chloroplast division and related matters

    Creator:
    Zheng, Ping
    Abstract:
    During exploration of imaging photosynthetic fluorimetry of Arabidopsis thaliana mutants, we discovered a novel phenomenon wherein photosynthetic efficiency (defined in Ning et al., 1995) is shown to plot in discrete groups. This exploration resulted first in the development of a spectrofluorometric method that apparently allows for in vivo observation of...
    Resource Type:
    Dissertation
    Full Text:
    dissertation committee members: Prof. Jack R. Stang for his cheerful interest in my research, sage practical

  • Exposure of ionic hyper-regulated artemia to chlorine – 36 in a marine system

    Creator:
    Shaw, Christopher Glenn
    Abstract:
    Chlorine – 36 (36Cl) is produced naturally, through neutron activation of stable chlorine during nuclear weapons detonation, or from neutron capture on residual chlorine in graphite piles. It has a half-life of 301,000 years and decays by the means of beta decay with an average energy of 236.33 keV. Due...
    Resource Type:
    Masters Thesis

  • Nursery container weeds response to modification of substrate pH, substrate particle size and applied nitrogen form

    Creator:
    Wada, Sugae
    Abstract:
    Experiments were conducted to determine the influence of cultural management practices on weed growth in nursery containers. Experiments 1 and 2 evaluated the effects of dolomitic lime rate and application method on substrate pH, creeping woodsorrel (Oxalis corniculata L.) establishment in containers, and growth of azalea (Rhododendron ‘Rosebud’) and pieris...
    Resource Type:
    Masters Thesis
    Full Text:
    gratitude to Dr. Carol Mallory-Smith, Dr. Jack R. Stang, and Dr. Thomas F. Savage for serving as my

  • Interaction of ethofumesate with dry soil

    Creator:
    McAuliffe, David
    Abstract:
    Previous studies have shown loss of ethofumesate activity when the herbicide was applied to dry soil (2% w/w moisture content) in both field and greenhouse studies, even when rainfall or irrigation was received within a few days. Laboratory studies were conducted to determine the mechanism for this activity loss. Dry...
    Resource Type:
    Dissertation
    Full Text:
    the members of my committee, Dr. Thomas Moore, Dr. Van Volk, Dr. Orvid Lee, and Dr. Jack Stang, for

  • Systematics and host associations of Ormyrus species (Hymenoptera: Chalcidoidea)

    Creator:
    Hanson, Paul E.
    Abstract:
    The genus Ormyrus has a worldwide distribution and comprises about sixty recognized species. The higher taxonomic relationships of the genus are uncertain, as evidenced by its placement in the families Ormyridae, Pteromalidae, or Torymidae. Here, the genus is described in detail and a preliminary catalog of the world species is...
    Resource Type:
    Dissertation
    Full Text:
    their help: Jerry Krantz, Jack Lattin, Tom Allen, and Bill Denison. I am grateful to Chris Darling for

  • Conditioning bunchgrass on elk winter range

    Creator:
    Westenskow, Kathy Jo
    Abstract:
    Research was conducted near the Starkey Experimental Forest and Range in northeastern Oregon. Effects of defoliating bluebunch wheatgrass (Agropyron spicatum (Pursh) Scribn. and Smith) to increase the quality of regrowth available on elk (Cervus elaphus nelsoni) winter range were studied from 1988 through 1990. Clipping treatments were implemented to condition...
    Resource Type:
    Masters Thesis
    Full Text:
    . Jack W. Thomas and Dr. John Hart, for their help and guidance during my program, and for their

  • Aerobic biotransformation of chlorinated aliphatic hydrocarbons by a benzyl alcohol grown mixed culture : cometabolism, mechanisms, kinetics and modeling

    Creator:
    Tejasen, Sarun
    Abstract:
    The aerobic transformation of TCE and cis-DCE by a tetrabutoxysilane-grown microorganism (Vancheeswaran et al., 1999) led to the investigation of novel substrates, including benzyl alcohol, for promoting cometabolism. The culture grew on carboxylic compounds and alcohols, but did not grow on formate, methanol, methane, propane, butane, ethylene, benzene, toluene, or...
    Resource Type:
    Dissertation
    Full Text:
    studies. I also thank my committee members, Dr. Kenneth J. Williamson, Dr. Daniel J. Arp, Dr. Jack Istok