What is the fine-grained topic of the following text: The vineyards cover 12 hectares of vineyards in the vineyards Bandkräftn, Geyer, Greiner Kraxner, Plachen, Ruster, sentence, outline and Vogelsang, They are half each with the red varieties Blaufränkisch , Zweigelt, Pinot Noir, Merlot and Cabernet Sauvignon, and the white varieties Welschriesling, Chardonnay, Pinot Blanc, Grüner Veltliner, Neuburger, Muscat Ottonel and Gewürztraminer. Only return the topic.
Vineyard's varieties of grapes