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Filtering by: Subject Roses Remove constraint Subject: Roses Creator Bartlett, Allan B. Remove constraint Creator: Bartlett, Allan B. Degree Field Botany and Plant Pathology Remove constraint Degree Field: Botany and Plant Pathology

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  • Relation of nitrogenous substances in rose leaves to powdery mildew resistance

    Creator:
    Bartlett, Allan B.
    Abstract:
    There is considerable variation among rose varieties in susceptibility to mildew, and as a result of maturation, leaves of most susceptible varieties become resistant to infection. The nature of resistance has been sought in various studies involving environmental, morphological, and physiological factors. An attempt was made in the present investigation...
    Resource Type:
    Dissertation
    Full Text:
    Relation of nitrogenous substances in rose leaves to