roesler

{{Short description|Variety of grape}}

{{Infobox grape variety

| name = Roesler

| image =

| caption =

| species = Vitis vinifera

| origin = Austria

| breeder = Dr. Gertraud Mayer

}}

Roesler is a red Austrian wine grape developed in 1970 by Dr. Gertraud Mayer at Höhere Bundeslehranstalt und das Bundesamt für Wein- und Obstbau in Klosterneuburg, Austria. It is the result of a crossing Zweigelt x (Seyve-Villard 18-402 x Blaufränkisch).

It is named after the former director of Austria's oldest viticultural college, Leonard Roesler (1839–1910), who was a German-Austrian chemist and oenologist.{{cite book | last=Burkhardt | first=Lotte | title=Eine Enzyklopädie zu eponymischen Pflanzennamen |trans-title=Encyclopedia of eponymic plant names | publisher=Botanic Garden and Botanical Museum, Freie Universität Berlin | year=2022 | isbn=978-3-946292-41-8 | url=https://doi.org/10.3372/epolist2022|format=pdf |language=German |location=Berlin | doi=10.3372/epolist2022 | s2cid=246307410 |access-date=January 27, 2022}} The variety is deep in colour and with abundant extract. It is frost resistant and can withstand temperatures as low as -25°C (-13°F). It is also resistant to mildew. Moser, Peter The Ultimate Austrian Wine Guide Falstaff Productions Ltd. (Falstaff Verlags GmbH) 2008 {{ISBN|978-3-902660-00-8}}