A “new breed” results from the intentional combination of two or more grape varieties (single or multiple crossings) with the focus on the new variety revealing all of the positive characteristics of the parent varieties while the negative characteristics are suppressed. Despite intense efforts, however, there has been only partial success. The cross-breeding of vines is both time- and cost-intensive. In Austria, new cultivars are bred at the Lehr- und Forschungsuzentrum für Wein- und Obstbau (Federal Institute for Viticulture and Pomology) in Klosterneuburg.
The following new breeds are part of the Austrian quality grape variety range:
- White wine varieties: Müller-Thurgau, Muskat-Ottonel, Scheurebe, Jubiläumsrebe, Goldburger
- Red wine varieties: Blauburger, Zweigelt, Rathay, Roesler
The aim of today's new cultivars is mainly to improve varietal resistance to fungal diseases. These crossings are called PIWI (fungal resistant) varieties. The resistance, against one or more fungal diseases, is always only partial. And now, there is a series of partially- resistant varieties for which fewer phytosanitary measures against fungal disease have to be performed. The following partially resistant varieties are included in the Austrian quality grape variety range:
- Red wine varieties: Rathay, Roesler
- White wine varieties: Blütenmuskateller, Muscaris, Souvignier girs
For the production of wine without protected designation of origin or geographical indication with grape variety- or vintage-designation, the following partially-resistant grape varieties are permitted for planting: