1) Red wine grape variety
Found on
https://www.crosswordclues.com/clue/rotberger
Rotberger is a wine grape variety. Its parentage is not known with certainty but it is thought to be from a cross of Trollinger and Riesling grapes). Dr. Heinrich Birk (1898-1973) produced the cross at the Geisenheim Grape Breeding Institute in 1928. It is used to produce fruity, early maturing light red wines in cool-climate areas. It is often be...
Found on
http://en.wikipedia.org/wiki/Rotberger
No exact match found.
