- Allogène (après 1900)
- 6 Ha (0.04%)
An artificial cross obtained accidentally in 1839 at Angers (F), this variety was named after a certain H. Ottonel. Its heritage remained uncertain until DNA tests revealed it was a cross between Chasselas and Muscat d'Eisenstadt. This early variety is sensitive to fungal disease and has high levels of sugar. It can be used to produce dry or sweet wines. It is not widely grown in Switzerland.