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    David Macgregor P 2- 54

    interspecific hybrid

    David Macgregor P 2- 54 is a breeding line recorded in the Vitis International Variety Catalogue (VIVC), passport no. 24125.1

    VIVC gives its country or region of origin as United States.1

    VIVC lists its parents as Sülter × Morio Muskat, as given by the breeder or the literature.1

    It is not in the University of Adelaide area database: no vineyard area is recorded for it in 2000–2023.2

    In the atlas it is a parent of 1 variety.1

    vinoluma engraving: a schematic leaf, not a botanical description of the variety.
    Origin
    United States1
    Offspring in the atlas
    1
    parentSülter
    parentMorio Muskat
    David Macgregor P 2- 54

    Sources

    1. VIVC passport no. 24125. Vitis International Variety Catalogue (VIVC), Julius Kühn-Institut, 2026. level 2
    2. Database of Regional, National and Global Winegrape Bearing Areas by Variety, 2000 to 2023. Anderson K., Nelgen S., Puga G. Wine Economics Research Centre, University of Adelaide (CC BY 4.0), 2026. level 3