Terroir 2008 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2008 9 Climatic change and terroir 9 Heat requirements for grapevine varieties is essential information to adapt plant material in a changing climate

Heat requirements for grapevine varieties is essential information to adapt plant material in a changing climate

Abstract

Precocity for fruit ripening is a genetically determined characteristic that is highly variable from one cultivar to another. In traditional wine-growing regions of Europe, growers have used this property to adapt the vines to local climatic conditions in order to maximize terroir expression. Due to global warming, the choice of later ripening grapevine varieties might be necessary in many regions to maintain late ripening conditions favourable for terroir expression. Hence, precise heat requirement data for each grapevine variety is essential information. Phenology (budburst, flowering, veraison and ripeness) and temperature data have been collected for many varieties in a wide range of locations over a great number of vintages. Heat summations base of 10°C were calculated for each variety to reach key phenological stages. However, a more sophisticated agro-climatic model might be necessary to increase the precision of a classification of varieties according to their precocity.

 

DOI:

Publication date: December 8, 2021

Issue: Terroir 2008

Type : Article

Authors

VAN LEEUWEN C. (1), GARNIER C. (2), AGUT C. (3), BACULAT B. (4), BARBEAU G. (5), BESNARD E. (6), BOIS B. (7), BOURSIQUOT J.-M. (2), CHUINE I. (8), DESSUP T. (9), DUFOURCQ T. (10), GARCIA-CORTAZAR I. (8), MARGUERIT E. (1), MONAMY C. (11), KOUNDOURAS S. (12), PAYAN J.-C. (13), PARKER A. (1), RENOUF V. (1), RODRIGUEZ-LOVELLE B. (3), ROBY J.-P. (1), TONIETTO J. (14) and TRAMBOUZE W. (15)

(1) ENITA – ISVV, 1 Cours du Général de Gaulle, CS 40201, F-33175 Gradignan-Cedex
(2) SupAgro Montpellier
(3) SGVRCDR Orange
(4) Agroclim Avignon
(5) INRA Angers
(6) Ferme expérimentale Cahors
(7) IUVV Dijon
(8) CEFE-CNRS Montpellier
(9) UMR DGPC Montpellier
(10) IFV Midi-Pyrénées
(11) BIVB Beaune
(12) University Agronomique Thessalonique
(13) IFV Nîmes
(14) Embrapa Brésil
(15) Chambre d’Agriculture Hérault

Contact the author

Keywords

Vine, cultivar, phenology, heat requirement, precocity

Tags

IVES Conference Series | Terroir 2008

Citation

Related articles…

Spotted lanternfly, a new invasive insect in vineyards: is it a threat to grapevines?

The spotted lanternfly (SLF; Lycorma delicatula) is a phloem-feeding polyphagous insect invasive to the Eastern U.S.. Since its first detection in Pennsylvania (U.S.) in 2014, large infestations and economic damage (e.g., decreased yield, vine decline, greater pesticide use) have been reported in an increasing number of vineyards, threatening the sustainability and growth of the wine industry in infested regions. Our team has been investigating the impacts of SLF phloem-feeding on physiological processes, fruit production, juice, and wine composition of different grape cultivars, and also evaluated if the SLF can transmit important grapevine pathogens. In addition, we are working closely with stakeholders to better enumerate the economic damage caused by this pest. These findings will provide relevant information to grape and wine producers to help identify action thresholds and develop a more targeted integrated pest management program.

Application of DEXI PM Vigne sustainability tool to the assessment of alternative vineyard protection strategies

Implementing alternative grapevine systems that incorporate sustainable strategies and innovative farming practices is essential. However, we lack tools for measuring the impact of these new practices on the overall sustainability of vineyards. DEXi PM Vigne (Gary et al., 2015) is a tool developed for ex ante assessment of the sustainability of grapevine cropping systems, from the plot to the farm scale. In the present study, we focused on implementing new strategies of integrated crop protection management with limited pesticide use in vineyards.

Impact of high temperatures on phenolic profile of Babić grapes

Babić is a Croatian native grapevine variety grown in the Coastal region, mainly in the Šibenik and Primošten areas, famous for high quality red wines. The region is known for its warm Mediterranean climate and karst relief. Vineyards are found on the hillsides of varying slopes and exposition usually giving low yields of exceptional quality.

Observatoire du Grenache en Vallée du Rhône: incidence du terroir sur la diversité analytique et sensorielle des vins

Rhone Valley A.O.C. Vineyards cover more than 70 000 hectares, of wich more than 40 000 plantedwith Grenache N. The Grenache observatory was created in 1995.

The effect of Nitrogen and Sulphur foliar applications in hot climates

ine nitrogen deficiency can negatively influence the aroma profile and ageing potential of white wines. Canopy management can alter vine microclimate, affect the nitrogen availability and influence the response of leaf senescence. Increasing the nitrogen availability to vines can increase the Yeast Assimilable Nitrogen (YAN) levels in harvested fruit and wine. Studies show that foliar nitrogen and sulphur applications at véraison, on low YAN Sauvignon blanc grapes have an effect on the level of amino acids (Jreij et al. 2009) and on S-containing compounds such as glutathione and thiols (Lacroux et al. 2008), which in turn can influence the formation of major volatiles and the aroma profile of the wine.