Terroir 2012 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2012 9 Grapegrowing climates 9 Impact of microclimate on berry quality parameters of white Riesling (Vitis vinifera L.)

Impact of microclimate on berry quality parameters of white Riesling (Vitis vinifera L.)

Abstract

Knowledge has been accumulated on the impact of microclimate, in particular berry temperature and irradiation, for a wide range of red varieties. However, little research has been dedicated on the effects of the same factors on the quality of white grape varieties.

In this study we present results of the effects of microclimate on the composition of white Riesling (Vitis vinifera L.) under different row orientations. The microclimatic parameters monitored in this study were canopy humidity and temperature, berry surface temperature using infrared thermography, ambient humidity, temperature, wind speed and irradiation parameters. Bunches of different exposure within the canopy of three different row orientations (North to South; East to West; South-West to North-East) were monitored. In addition to the natural environment, some bunches were sheltered in boxes to exclude any impact of light. Further, a defoliation treatment was established to provide maximum light interception.

Results of the study showed that bunches under higher radiation interception, had a faster malic acid degradation and berries were accumulating more flavonols, while the differences in sugar accumulation seemed to depend on leaf peak temperatures rather than on the exposure of the berries.

DOI:

Publication date: August 28, 2020

Issue: Terroir 2012

Type: Article

Authors

Matthias FRIEDEL (1), Michael WEBER (1), Jeanette ZACHARIAS (2), Claus-Dieter PATZ (2), Manfred STOLL (1)

(1) Geisenheim Research Center, Department of Viticulture, Von-Lade-Str. 1, 65366 Geisenheim, Germany
(2) Geisenheim Research Center, Department of Wine Chemistry and Beverage Technology Von-Lade-Str. 1, 65366 Geisenheim, Germany

Contact the author

Keywords

Row Orientation, Riesling, Microclimate, Berry Temperature, Flavonoids

Tags

IVES Conference Series | Terroir 2012

Citation

Related articles…

Moderate wine consumption as part of a Mediterranean diet and lifestyle under debate

Moderate wine consumption – with the meals – represents one of the beneficial components of the traditional mediterranean diet (med diet) and a positive item in the med diet score [1,2, 3]. The med diet is considered one of the best diets in the world and the world health organisation (who) identified this eating pattern as an effective strategy to prevent non-communicable diseases (ncd), since it is associated with lower disease occurrence and all-cause mortality [4] . Numerous well-conducted epidemiological studies have also reported that light-to-moderate intake of wine/alcoholic beverages is not only related to a reduced risk of cardiovascular disease, but also to all-cause mortality.

Physiological behavior of the Chasselas grape variety under water deficit: 30 years of experiments in Switzerland

In the context of increasingly hot and dry summers, the adoption of innovative irrigation technologies has become essential for maintaining grape production while minimizing water use.

Characterization of phenolics and VOCs in wines obtained from Malbec vineyards of the Uco Valley submitted to high-altitude solar UV-B and water restriction

Characterization of phenolics and VOCs in wines obtained from Malbec vineyards of the Uco Valley submitted to high-altitude solar UV-B and water restriction

Effect of ozone treatments in wine production on colour traits, volatile composition, and sensory characteristics of young and short-term aged white wines

The main aim of WiSSaTech project (PRIN P2022LXY3A),supported by the Italian Ministero dell’Università e della Ricerca and European Union-NextGenerationEU, is to investigate eco-friendly and safe alternatives to sulphur dioxide (SO2) in wine production.