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  • Degradation kinetics of taxol using mass spectroscopy

    Creator:
    Zhang, Jun
    Abstract:
    Paclitaxel is a very important anticancer drug commonly called Taxol®. We know from previous work (Hoffman, et al., 1998) that Taxol exists in filbert, Corylus avellana L. material. Quantification of Taxol in filbert plant material is painstaking and hitherto was accomplished by rapidly processing single batches in a complicated procedure...
    Resource Type:
    Masters Thesis
    Full Text:
    , plus minor degradation at pH 5. Two optimum pHs for stability were found at pH 4 and pH 7. This

  • 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:
    Expeiment 5 incorporating the same lime rates used in Experiment 3 and 4 caused chlorosis in azalea and

  • Use of nondestructive spectroscopy to assess chlorophyll and nitrogen in fresh leaves

    Creator:
    Ding, Pinghai
    Abstract:
    Four aspects of factors influencing the accuracy of nondestructive chlorophyll (Chl) and nitrogen (N) measurement in fresh leaves were studied: (1) optimum wavelength (OW) identification; (2) indices development and evaluation; (3) influence of leaf properties; and (4) influence of meter parameters and sampling technique. Results were used to develop indices...
    Resource Type:
    Dissertation
    Full Text:
    Pinghai Ding December 5, 2005 All Rights Reserved

  • Field and greenhouse studies with Acalymma and Diabrotica : protection of cucurbits with a kaolin-based particle film : feeding damage to cucumbers with and without cucurbitacin

    Creator:
    Reich, Joel A.
    Abstract:
    Research was conducted in the field and greenhouse to determine if a kaolinite-based particle film, Surround®, would reduce colonization and early season feeding damage in cucurbits by the Western Striped Cucumber Beetle, Acalymma trivitattum (Mannerheim). Greenhouse studies were designed to determine effect of particle film on cucumber dry weight production...
    Resource Type:
    Masters Thesis
    Full Text:
    . trivittatum by treatment by date at SIFI-Riverside trial.…………… 42 5. Average leaf damage to

  • Exploration of the feasibility of developing a winter hardy 'Marion' blackberry through genetic engineering

    Creator:
    Meng, Rengong
    Abstract:
    Experiments focusing on plant growth regulators’ concentrations and combination, mineral salt formulations and TDZ pretreatment formations were conducted to optimize in vitro shoot regeneration from leaf and petiole explants of 'Marion' blackberry. Optimum shoot formation was obtained when stock plants were incubated in TDZ pretreatment medium for three weeks before...
    Resource Type:
    Dissertation
    Full Text:
    70% of leaf explants formed approximately forty shoots that could be harvested from each petri dish

  • Fingerprinting and genetic stability of Rubus using molecular markers

    Creator:
    Castillo, Nina Rosa F.
    Abstract:
    Two studies used DNA markers to assess their usefulness in germplasm identification and evaluation of genetic stability in four cryopreserved Rubus accessions that were stored for over 10 years in liquid nitrogen. In the first study, 12 robust Simple Sequence Repeat (SSR) markers were developed from two microsatellite-enriched libraries of...
    Resource Type:
    Masters Thesis
    Full Text:
    microsatellite-enriched libraries of ‘Meeker’ raspberry and ‘Marion’ blackberry. Of the 70 and 78 SSR

  • Influence of cover crops on vine performance at two Willamette Valley vineyards

    Creator:
    Sweet, Rebecca Marie
    Abstract:
    It is estimated that 50-75% of Oregon vineyards cultivate at least every other alley in order to 1) reduce water stress 2) increase vineyard canopy temperatures and 3) increase nutrient availability. Because many vineyards are situated on steep hillsides, frequent tillage could result in increased soil erosion, decreased soil quality...
    Resource Type:
    Masters Thesis
    Full Text:
    meadow mix (forbs plus grasses), 5) perennial grass mix (sheep fescue, dwarf perennial rye and hard

  • Ectopic overexpression of Arabidopsis CBF genes enhances freezing tolerance of two potato species

    Creator:
    Pino, María-Teresa
    Abstract:
    Solanum species differ in their degree of frost tolerance and cold acclimation capacity. Cultivated potato species of Solanum tuberosum L. are frost-sensitive, incapable of cold acclimation, and have a maximum freezing tolerance of –3°C. Solanum commersonii Dun is frost-tolerant and can survive to –5ºC pre-acclimation and –10ºC post-acclimation. Breeding attempts...
    Resource Type:
    Dissertation
    Full Text:
    References…………………………………………………………………... 146 CHAPTER 5. GENERAL CONCLUSIONS……………………………………….. 158

  • Study of seed germination-associated genes using Arabidopsis enhancer-trap

    Creator:
    Liu, Po-Pu
    Abstract:
    In mature Arabidopsis seeds, the testa (seed coat) is no longer a living tissue. Thus, major sites of gene expression in imbibed seeds are the internal living tissues such as the embryo and the endosperm. To elucidate the molecular mechanisms of seed germination, the gene regulation in these two tissues...
    Resource Type:
    Dissertation
    Full Text:
    during germination. One of these lines, BME3, had a T-DNA insertion site in the 5’ upstream region of

  • Alternative orchard floor management practices, soil quality, nitrogen fertilizeruptake, and apple tree growth and yield

    Creator:
    McDonald, Sarah Finger
    Abstract:
    Orchard floor management (OFM) practices can improve soil function and alter the soil biological community. Soil function is dependent on soil forming materials and on management practices but little is known about how OFM affect orchard soil quality, fertilizer N uptake, or tree growth and production. Research plots were located...
    Resource Type:
    Dissertation
    Full Text:
    ...................................................................................1  2   LITERATURE REVIEW.........................................................................5