Roesler has a high resistance against fungal diseases and is favoured in organic viticulture. A new crossing conducted in Klosterneuburg.
Origin
Austria, LFZ Klosterneuburg
Parentage
New breed from Blauer Zweigelt x Klosterneuburg 1189-9-77 (= Seyve Villard 18-402 x Blaufränkisch)
Vineyard area
238 ha, 0.5%
Parentage: New breed by Dr.Gertrude Mayer, LFZ Klosterneuburg.
Vineyard area: This variety has been registered as a quality grape variety since 2000, and is one of the PIWI varieties.
Important ampelographic features:
Leaf: large; five to seven lobes with a heavily blistered surface
Grape cluster: with loose, large grapes; conical; shouldered; and 1-2 wings with small, round blueish-black berries
Ripening time: mid-early season
Significance, conditions: Because of its strong colour, the Roessler variety is used as a blending partner. It is a partially resistant to oidium and peronospora and completely resistant to winter frost.
Wine: Brings red wine with a characteristic forest berry aroma. The colourful grapes yield extremely dark wines - rich in extract, body and tannins.