terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Climate change and viticulture in Nordic Countries and the Helsinki area

Climate change and viticulture in Nordic Countries and the Helsinki area

Abstract

The first vineyards in Northern Europe were in Denmark in the 15th century, in the southern parts of Sweden and Finland in the 18th century at 55–60 degrees latitude. The grapes grown there have not been made into wine, but the grapes have been eaten at festive tables. The resurgence of viticulture has started with global warming, and currently the total area of ​​viticulture in the Nordic countries, including Norway, is estimated to be 400–500 hectares, most of which is in Denmark. Southern Finland, like all southern parts of Northern Europe, belongs to the cool-cold winegrowing area. Southern Finland’s climate in the Helsinki area has become favourable for starting viticulture in the last couple of decades. This study viewed climate change and its impact on grapevine growth conditions in the Helsinki region during the first two decades of the millennium. [1] It observed an increase of 0.4 °C in the latter 10-year period compared to the previous 10-year period. Compared to the decades of the previous 20th century, this increase was more than twice higher during each of them. Between 2010 and 2019, the mean annual climate temperature exceeded seven times 7 °C, and in 2015, it was close to 8 °C. The budburst was latest on May 21. The growth cycle of Vitis vinifera variety Vitis ‘Rondo’, from bud break (E-L 5) [2] to harvest (E-L 38 and Brix18%), was shortened by11 days on average and by median 13 days over the second decade (2010–2019) compared to 2000–2019. The difference is statistically significant (p<0.05). The average beginning of harvest was shortened by 6 days, indicating a significant earlier harvest (p<0.05). The biggest difference in harvest days between the years was 21 days. Even during these short two decades, upward trending climate warming significantly accelerated the growth cycle of Vitis vinifera ‘Rondo’ in the Helsinki region.

References:
1) Karvonen J. (2020)   Changes in the grapevine’s growth cycle in Southern Finland in the 2000s –     comparison between two first decades. Clim. Change, 6(21): 94-99.
2) Eichhorn, K.W. and Lorenz, D.H. (1977) Phänologische Entwicklung der Rebe. Nachrichtenblatten des Deutschen Pflanzenschutzdienstes 21.

DOI:

Publication date: October 11, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Juha Karvonen1

1University of Helsinki, Department of Agricultural Sciences, Latokartanonkaari 7, 00790 Helsinki

Contact the author*

Keywords

northern viticulture, climate change, growing season, grape harvest

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Polyphenol content of cork granulates at different steps of the manufacturing process of microagglomerated stoppers treated with supercritical CO2 used for wine bottling

The wine closure industry is mainly divided into three categories: screw caps, synthetic closures, and cork-based closures. Among this latter, microagglomerated cork stoppers treated with supercritical CO2 are now widely used, especially to avoid cork taint contaminations[1]. They are designed with cork granules obtained from cork offcuts of the punching process during the natural cork stoppers production. A previous study[2] showed that these stoppers released fewer polyphenols in 12 % (v/v) hydroalcoholic solution than natural cork stoppers.

Stomatal abundance in grapevine: developmental genes, genotypic variation, and physiology

Grapevine cultivation is threatened by the global warming, which combines high temperatures and reduced rainfall, impacting in wine quality and even plant survival. Breeding for varieties resilient to these challenges must address plant traits such as tolerance to supraoptimal temperatures and optimized water use efficiency while minimizing productivity and quality losses. Stomatal abundance (SA) determines the maximum leaf potential for transpiration and thus water loss and cooling. Since SA results from a developmental process during leaf emergence and growth, knowledge on the genetic control of this process would provide specific targets for modification.

Exploring intra-vineyard variability with sensor- and molecular-based approaches 

The application of remote and proximal sensing is a fast and efficient method to monitor grapevine vegetative and physiological parameters and is considered valuable to derive information on associated yield and quality traits in the vineyard. Further details can be obtained by the application of molecular analysis at the gene expression level aiming at elucidating how pathways controlling the formation of different grape quality traits are influenced by spatial variability. This work aims at evaluating intra-vineyard variability in grape composition at harvest and at comparing this with remotely sensed canopy vegetation data and molecular-based approaches.

The colour pattern of flower arrangements influence wine tasters’ sensory description

The arrangements of flowers and wine counterparts are inextricably linked. Whether a fundamental aspect of tablescaping or acolytes to broader entertainment rituals, they have an entangled history since ancient times. The aim of this contribution is to verify the influence of visually delicate and robust flower arrangements on individual description of wines. Changes in the sensory description of wines were investigated during subjects’ (thirty-two participants) exposure to three different conditions: the presence of delicate, robust, or totally absent flower arrangements.

Combined abiotic-biotic plant stresses on the roots of grapevine

In the 19th century, devastating outbreaks of phylloxera (Daktulosphaira vitifoliae Fitch), almost brought European viticulture to its knees. Phylloxera does not only take energy in form of sugars from the vine, but also affects the up- and down- regulations of genes, acts as a carbon sink and reprograms the physiology of the grapevines, including nutrient uptake and the defense system [1]. A key trait of rootstocks is the ability to perform well under high lime conditions as about 30 % of the land surface has calcareous soil. Iron deficiency not only causes the well-known problems of lime-induced chlorosis and stunted growth, but also affects the entire plant metabolism.