Excitement over the new Sunpreme raisins was evident at UC Kearney Grape Day Aug. 8, 2017. As soon as the tram stopped, dozens of farmers and other industry professionals rushed over to the vineyard to take a close look and sample the fruit. Raisins pulled from the vine were meaty with very little residual seed. The flavor was a deep, sweet floral with a muscat note.
Sunpreme raisins, bred by now-retired USDA breeder David Ramming, promise a nearly labor-free raisin production system. Traditionally, raisins are picked and placed on paper trays on the vineyard floor to dry. The development of dried-on-the-vine varieties opened the door to greater mechanization. Workers would cut the stems above clusters...
- Author: Jeannette E. Warnert
Nearly half of the 55 unusual winegrape varieties in a plot at the UC Kearney Agricultural Research and Extension Center in Parlier displayed enough promising characteristics to prompt a cooperating vintner to make 25 small lots of wine.
The research at Kearney is designed to expand the wine industry’s options in the San Joaquin Valley, currently California’s top grape growing district in terms of production, but lowest in terms of price.
“Most of the popular wine varietals – Merlot, Cabernet Sauvignon, Chardonnay – are at their best in somewhat cooler climates. So we are looking for grapes that make superior fruit in warm climates,” said