terclim by ICS banner
IVES 9 IVES Conference Series 9 Temperature-based phenology modelling for the grapevine 

Temperature-based phenology modelling for the grapevine 

Abstract

Historical phenology records have indicated that advances in key developmental stages such as budburst, flowering and veraison are linked to increasing temperature caused by climate change. Using phenological models the timing of grapevine development in response to temperature can be characterized and projected in response to future climate scenarios.
We explore the development and use of grapevine phenological models and highlight several applications of models to characterize the timing of key stages of development of varieties, within and between regions, and the result of projections under different climate change scenarios. The following aspects were evaluated: (1) importance of defining modelling objectives, (2) an understanding of database characteristics and how this may influence modelling outcomes, (3) the accuracy of models compared to observations, (4) the influence of the quality of phenological observations on model development and (5) the importance of calibrating a maximum the varieties for specific models. The challenges of the different modelling approaches and strengths and limitations of the outputs are discussed, particularly in the context of climate change projections.
Combining the results of these separate approaches highlights the opportunities and limitations of different modelling solutions and how different modelling approaches are needed to understand how temperature influences grapevine development depending on objectives, and that tools are available to help us better evaluate the potential effects of climate change on grapevine development.

DOI:

Publication date: 13/06/2024

Issue: Open GPB 2024

Type: Poster

Authors

Amber K. Parker1*, Mike C.T. Trought1,2, Laure de Rességuier3, Cornelis van Leeuwen3, Elena Moltchanova4, Hervé Quénol5, Andrew Sturman6, Inaki Garcia de Cortazar Atauri7

1 Department of Wine, Food and Molecular Biosciences, PO Box 85084, Lincoln University, Lincoln 7647, Christchurch, New Zealand
2The New Zealand Institute for Plant & Food Research Limited (PFR), Marlborough Research Centre, New Zealand
3 EGFV, Univ. Bordeaux, Bordeaux Sciences Agro, INRAE, ISVV, F-33882 Villenave d’Ornon, France
4School of Mathematics and Statistics, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand
5 LETG-Rennes COSTEL, UMR 6554 CNRS, Université Rennes 2, Rennes, France
6 Centre for Atmospheric Research, University of Canterbury, Christchurch, New Zealand
7Agroclim, INRAE, Avignon, France

Contact the author*

Keywords

grapevine, phenology, temperature, climate change, modelling

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Berry splitting resistance of different grape cultivars

Grape berry splitting results from excessive tensile stress that builds on the skin. The thin shell theory describes splitting resistance of grape berries as the maximum internal pressure at the point of splitting. Quantifying this relationship in genetically diverse Merlot, Syrah, Zinfandel, and Concord grapes enabled us to determine cultivar differences and understand developmental changes in splitting resistance.

Application of grape pomace and stem extracts on Vitis vinifera L. cv. Monastrell: Increased stilbene content of grapes and wines

Pomace and grape stems are the main solid organic waste from winery industries, resulting from the pressing and/or fermentation processes it is generated in large amounts in many parts of the world

Quantitative analysis of vegetative growth in response to nitrogen stress for Vitis vinifera L. cv. Syrah from pot experiments

Maintaining grapevine productivity and wine quality with limited inputs (drought, low nitrogen supply) is crucial in Mediterranean areas.

« Wine routes »: a collective brand to build a wine reputation on the basis of terroir and landscapes

Le marché international du vin est désormais tourné vers la qualité et les vignobles de vin de masse se transforment pour construire la qualité et la réputation de leurs produits. Cette construction s’appuie notamment sur la valorisation de ressources territoriales de nature physique (terroir, pacage, écosystème) et humaine (savoir-faire, culture, patrimoine…). Les « Routes des Vins » sont des exemples concrets de ces processus de «territorialisation», combinant ces ressources territoriales pour communiquer sur l’ancrage géographique et la spécificité des vins. Les «Routes des Vins» émergentes, observées dans les régions vitivinicoles en transition vers la qualité, en Languedoc Roussillon, à Mendoza (Argentine) et au Western Cape (Afrique du Sud), participent souvent à la valorisation des terroirs, en organisant un itinéraire sur le territoire associé, en faisant découvrir les vins «de qualité», les paysages, les pratiques et le savoir-faire associés à leur élaboration.

Trends and challenges in International Wine Trade. The need for new strategies for companies and regions.

Trends already extended for more than 12 years show a decline in both consumption and international trade, particularly in volume. However, there are also positive signs in several categories of wine, segments and markets, as well as a better trend in terms of value. How are these trends affecting wine producers and distributors? Are they short or long term? do they mean radical and permanent changes to which a way of adaptation has to be found or are they just temporary changes that may only require some calm? How are companies adapting to these new trends? Which are their effects on wine regions?