Yield components and fruit composition of six 'Cabernet Sauvignon' grapevine selections in the Central San Joaquin Valley, California

Abstract

Six 'Cabemet Sauvignon' grapevine selections from the Foundation Plant Services (FPS), UC Davis, were evaluated near Fresno, California. Selections FPS 2, 8, 10, 21, 22, and 24, were planted in April 1997 as own-rooted cuttings, and fruit yield and composition were assessed annually from 2000 through 2003. Harvested on the same dates in a given year, selections 8, 21, and 22 had higher yields than the others because they had either: heavier berries, larger clusters, more clusters, or several of these variables. Selections had similar numbers of berries per cluster. Fruit of selections 22 and 24 generally matured first and the fruit of selection 2 matured last. Each selection had similar skin anthocyanin concentrations in the one year that pigments were measured.