Interannual and spatial variability of grape composition in the Rioja DOCa show better resilience of cv. graciano than cv. tempranillo under a warming scenario

View/ Open
Issue date
2021Suggested citation
Martínez de Toda, Fernando;
Ramos Martín, Ma. C. (Ma. Concepción);
.
(2021)
.
Interannual and spatial variability of grape composition in the Rioja DOCa show better resilience of cv. graciano than cv. tempranillo under a warming scenario.
OENO One, 2021, vol.55, núm.3, p. 85-100.
https://doi.org/10.20870/oeno-one.2021.55.3.4695.
Metadata
Show full item recordAbstract
Weather conditions affect vine development and grape composition, although the response may be different depending
on the variety and altitude. Under scenarios of climate change, the knowledge of the relationships between grape
composition and climate is therefore important to know the suitability of a given cultivar. In this research, the
variability of the grape composition of two red varieties with different phenological timings (Vitis vinifera L. cv.
Tempranillo and Graciano) cultivated in Rioja DOCa (Spain) and the climatic variables that have a higher effect on the
response of each of them were analysed. Grape composition of both cultivars at technical maturity (considered when
a probable volumetric alcoholic degree (PVAD) = 13 º was reached) was analysed during the period 2008–2020 in
areas located at different elevations and related to the weather conditions recorded in those areas. The results show the
effect of temperature and water availability in different periods during the growing cycle on grape composition and the
potential benefits of cultivating at a higher elevation, under higher water availability. The anthocyanins were affected
by the maximum temperatures recorded in the period before veraison and during ripening (period veraison to technical
maturity), decreasing their concentrations with increasing temperatures. In addition, higher water availability gave
rise to an increase in acidity. Graciano is shown as a variety more suitable than Tempranillo to be cultivated under
warmer conditions.
Is part of
OENO One, 2021, vol.55, núm.3, p. 85-100European research projects
Collections
The following license files are associated with this item: