Synonym or breeding number (also FR 250-75) for the grape variety Bronner; see there.
The white grape variety (also Freiburg 250-75) is a new breeding between Merzling x GM 6494 (see there the history of origin). It contains genes from Vitis amurensis, Vitis lincecumii, Vitis rupestris and Vitis vinifera. The crossing of the hybrids was done in...
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Sigi Hiss
freier Autor und Weinberater (Fine, Vinum u.a.), Bad Krozingen