
1) White wine grape variety 
Found on 
https://www.crosswordclues.com/clue/kerner

 Kerner is a surname. Notable people and organizations bearing this name include: In literature: In politics: In entertainment and media: In sports: In science and mathematics: In other fields: == See also == ...
Found on 
http://en.wikipedia.org/wiki/Kerner
 [grape]
[grape]  The Kerner grape is an aromatic white grape variety. It was bred in 1929 by August Herold by crossing Trollinger (a red variety also known as Schiava grossa or Vernatsch) and Riesling. Herold was working at a plant breeding station in Lauffen in the Württemberg region of Germany. This station belonged to a state breeding institute ...
Found on 
http://en.wikipedia.org/wiki/Kerner_(grape)
  No exact match found.