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  • Inflorescence necrosis, ammonium, and evidence for ferredoxin-glutamate synthase activity in grape (Vitis vinifera L.)

    Creator:
    Creasy, Glen L.
    Abstract:
    Death of flower parts near bloom due to inflorescence necrosis (IN) is associated with high ammonium (NH₄⁺) concentration in flower clusters, shade, cool wet weather preceding bloom, and excessive vigor. Faults in NH₄⁺ assimilation are suspected to cause a rise in NH₄⁺ concentration to toxic levels in flower cluster but...
    Resource Type:
    Dissertation
    Full Text:
    , Ammonium, and Evidence for Ferredoxin-Glutamate Synthase Activity in Grape (Vitis vinifera L.) Abstract

  • Xylem discontinuity in Vitis vinifera L. berries

    Creator:
    Creasy, Glen L.
    Abstract:
    Several effects of xylem discontinuity in Pinot noir and Merlot grape berries were studied. There was a reduction in the amount of apoplastic dye (Eosin Y or azosulfamide) uptake through cut pedicels into soft versus firm berries, suggesting a reduction in maximal xylem flow at that time. Both greenhouse and...
    Resource Type:
    Masters Thesis
    Full Text:
    grape physiology because of its complexity. Grape berries are unusual in that they can accumulate