Terroir 1996 banner
IVES 9 IVES Conference Series 9 Clone performance under different environmental conditions in California

Clone performance under different environmental conditions in California

Abstract

Clonal evaluation of winegrapes in California has not been extensive. Early selection work by Alley (1977), Olmo (unpublished data) and Goheen (personal communication) resulted in the current collection of virus-tested clones in Foundation Plant Materials Service (FPMS) at the University of California, Davis. However, release of these certified selections was generally not accompanied by publication of viticultural performance or wine sensory attributes. A present day effort to characterize differences among clones of several cultivars has begun (Wolpert et al, 1995), with the objective of determining the viticultural and enological characteristics of winegrape clones. Research to date has centered on certified selections of Cabernet Sauvignon, Chardonnay, Pinot noir (for sparkling wine) and Zinfandel. In this paper, Cabernet-Sauvignon and Chardonnay performance will be examined in greater detail.

DOI:

Publication date: February 24, 2022

Issue: Terroir 2000

Type: Article

Authors

James A. Wolpert

Department of Viticulture and Enology
University of California
Davis, CA 95616

Tags

IVES Conference Series | Terroir 2000

Citation

Related articles…

Characterization of varieties named ‘Caiño’ cultivated from Northwest of Spain

The ‘Caiño’ cultivar was cultivated in Galicia (Northwestern Spain) before the invasion of grape phylloxera. Genetic diversity from this cultivar have been described and considered as originating in Galicia, ‘Caiño Tinto’, ‘Caiño Bravo’, ‘Caiño Redondo’, ‘Caiño Longo’ and ‘Caiño Blanco’.

Zonage viticole des surfaces potentielles dans la vallée Centrale de Tarija (Bolivie)

La présente étude de zonage viticole a été faite dans la région de la vallée Central de Tarija(VCT), dans la ville de Tarija, au Sud de la Bolivie; une région avec plus de 400 années de tradition qui présente une vitiviniculture de haute qualité. La Vallée possède une surface total de 332 milles ha.; existant des vignobles entre 1660 y 2300 m.s.n.m. et dans ce rang d’altitude il existe 91 mille ha.

Water and physiological response to early leaf removal of cv. Verdejo in rainfed conditions, at different times of the day, in the D.O. Rueda (Spain)

Aim: Early leaf removal, generally applied before flowering, is mostly conceived as a technique to control grape yield and improve the health of grapes and focused on the final objective of increasing wine quality.

Biological de-sugaring of grape musts to adjust the alcoholic strength of wine

Climate change is having an ever-increasing impact on the physico-chemical composition of grapes, with ever-lower acidity and higher sugar levels.

The impact of postharvest cooling of Sauvignon blanc grapes on the sensory profile and the chemical composition of the wines

Rapid processing of grapes after harvest has always been considered essential for achieving a balanced sensory wine profile.