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Filtering by: Creator Bassil, Nahla V. Remove constraint Creator: Bassil, Nahla V. Committee Member Mehlenbacher, Shawn Remove constraint Committee Member: Mehlenbacher, Shawn Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Development and use of molecular tools in Fragaria

    Creator:
    Njuguna, Wambui
    Abstract:
    This dissertation describes the application and development of molecular tools that have great potential for use in studying variation in strawberry germplasm. The first study evaluated 91 microsatellite (simple sequence repeat, SSR) markers for transferability in 22 Fragaria species and their utility in fingerprinting octoploid strawberries. Out of the transferable...
    Resource Type:
    Dissertation
    Full Text:
    of my major advisor, Dr. Nahla V. Bassil, during my studies at Oregon State University. Her

  • Evaluation of genetic diversity in wild populations of black raspberry (Rubus occidentalis L.)

    Creator:
    Dossett, Michael
    Abstract:
    In recent years, there has been renewed interest in black raspberry (Rubus occidentalis L.) breeding. This has been spurred, in part, by an increase in black raspberry consumption due to studies that have shown them to be particularly high in anthocyanin content indicating high levels of antioxidants. Present cultivars are...
    Resource Type:
    Dissertation
    Full Text:
    . Nahla Bassil for her guidance and support, enthusiasm, constant smile, and cheerful disposition. I owe

  • A microscopic and phenological study of pollen development and bloom in selected cultivars of hazelnut (Corylus avellana)

    Creator:
    Tiyayon, Chantalak
    Abstract:
    Pollen development is an important process in male flower development, the timing of which may be correlated with time of pollen shed in hazelnut (Corylus avellana L.). Early to very late blooming cultivars were identified and the relationship of microsporogenesis and microgametogenesis, and time of pollen shed were studied in...
    Resource Type:
    Dissertation
    Full Text:
    expertise in hazelnut, Dr. Vaughn Walton for his assistance in the phenology study, Dr. Nahla Bassil for

  • Breeding and genetics of lilacs and hardy hibiscus

    Creator:
    Lattier, Jason D.
    Abstract:
    Lilacs are a group of ornamental trees and shrubs in the Oleaceae family consisting of 22 to 30 species. There are six series within genus Syringa: Pubescentes, Villosae, Ligustrae, Ligustrina, Pinnatifoliae, and Syringa. Fertility and cross-compatibility among cultivars, species, and series have yet to be formally investigated. Over three years,...
    Resource Type:
    Dissertation
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    members is also sincerely appreciated, including Dr. Shawn Mehlenbacher, Dr. Jennifer Kling, Dr. Nahla

  • Genetic resistance to white mold (Sclerotinia sclerotiorum (Lib.) De Bary) in scarlet runner beans (Phaseolus coccineus L.)

    Creator:
    Gilmore, Barbara S.
    Abstract:
    White mold, caused by Sclerotinia sclerotiorum (Lib.) De Bary, is a destructive yield-limiting disease of common bean (Phaseolus vulgaris L.). Genetic resistance to this pathogen is limited in common bean. Identification of high levels of partial physiological resistance in a genetically cross compatible species, Phaseolus coccineus, is advisable. The objectives...
    Resource Type:
    Dissertation
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    based on that bean. I would like to thank Dr. Nahla Bassil, of the USDA National Clonal Germplasm

  • Factors influencing storage quality of hazelnut varieties

    Creator:
    Ebrahem, Kais Shaheb
    Abstract:
    This thesis research is a series of five studies dealing with various aspects of hazelnut quality: 1. Identification of kernel mold and its incidence among hazelnut varieties. 2. Seasonal development and composition of kernels. 3. Hazelnut oil composition (fatty acids and tocopherols) of seventeen varieties. 4. Hazelnut oil composition compared...
    Resource Type:
    Dissertation
    Full Text:
    propagation (Lagerstedt and Hubert, 1975; Lagerstedt, 1982; Stebbins and Kent, 1982; Bassil et al., 1991