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Plant production

Verdenal T., Spring J.-L., Dienes-Nagy Á., Bourdin G. und Zufferey V.

Impact of foliar nitrogen supplementation on Chardonnay and Sauvignon Blanc wines

The effectiveness of an application of foliar nitrogen at veraison depends on the initial level of vine nitrogen deficiency, an Agroscope study has shown. The threshold levels of assimilable nitrogen deficiency in the grape must are validated for Chardonnay but still need to be confirmed for Sauvignon Blanc.
Plant production

Reynard J.- S., Spring J.-L., Verdenal T., Zufferey V., Bourdin G., Bieri S., Carlen C., Crettenand F., Favre G.

Safeguarding the Genetic Diversity of Arvine

A programme has been launched for safeguarding the genetic diversity of Arvine, a grape variety formerly cultivated in Valais. Directed selection would make it possible to exploit this variety's biodiversity and to meet the ecological and economic challenges of the future.
Plant production

Spring J.-L-, Zufferey V., Verdenal T., Reynard J.-S., Lorenzini F., Bourdin G., Blouin A., Carlen C., Jermini M., Morisoli R., Ferretti M.

New Merlot Clones for the Swiss Certification Sector

Five Merlot clones bred in Switzerland are currently being distributed by the certification sector. A multiyear trial conducted by Agroscope in Gudo (Canton of Ticino) has made it possible to compare them with French and Italian reference clones and to highlight their very good performances.