The white grape (also Geisenheim 4984) is an interspecific new breed between ( Riesling x Sylvaner ) x Seibel 7053 ( Chancellor ). The mother places but has nothing to the Müller-Thurgau to do, which is falsely called in some sources (apart from the fact that at the Müller-Thurgau the Silvaner was not involved). They are genes of Vitis labrusca. Vitis lincecumii. Vitis rupestris and Vitis vinifera contain. The intersection of hybrid was carried out by dr. Heinrich Birk (1898-1973) in 1962 at the research institute Geisenheim in the Rheingau. The German-born viticulture pioneer Hans Breidecker was honored with the name, who successfully introduced the variety in New Zealand. The vine is resistant to both mildews and Botrytis, It produces white wines with pronounced aromas of pears and apples. The variety is in New Zealand cultivated on seven hectares of vineyards. In Austria (Burgenland) the variety has become the local specialty since 2016 Uhudler used.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012