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IVES 9 IVES Conference Series 9 GiESCO 9 Category: GiESCO 2023

Proceedings of GiESCO 2023

The 22nd GIESCO meeting is held by Cornell University in Ithaca, NY, July 17-21, 2023.

Giesco 2023 – View all

GiESCO 2023IVES Conference SeriesSessions 1, 2 and 3: Adaptation to climate change

Comparison of genotype x environment interaction of clonal and polyclonal grapevine selected materials

Conserving and exploring the intra-varietal diversity of ancient varieties is essential to foster their use in the future, preserving the traditions and history of ancient growing regions and their wines. The conservation of representative samples of ancient varieties and the utilization of intra-varietal variability through polyclonal selection are advisable strategies to save and promote the cultivation of each variety, respectively.

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GiESCO 2023IVES Conference SeriesSessions 1, 2 and 3: Adaptation to climate change

Epigenetics: an innovative lever for grapevine breeding in times of climate changes

Climate change results in erratic weather conditions, which may lead for many crops including grapevine, to a reduced production and products of lower quality. Concerning grapevine, climate change results in shorter growing seasons and dates for budbreak, flowering and fruit maturity occur earlier in many regions. It also leads to an increase of various pests and diseases, as well as the vectors responsible for disease distribution.

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GiESCO 2023IVES Conference SeriesSessions 1, 2 and 3: Adaptation to climate change

Physiological responses of crimson seedless (Vitis vinifera) grapevines to altered micro climatic conditions and different water treatments in the Breede River Valley of South Africa

Challenging conditions created by limited water supply and changes in the climate require an understanding of the physiological status of table grapes along the whole value chain. This is critical to develop tools for regulatory management of growth balances and grape quality. This study aimed to determine the impact of different amounts of water and an altered micro-climate (complete covering of vineyards with plastic) on the physiological reaction of the grapevine during the growth season.

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GiESCO 2023IVES Conference SeriesSessions 1, 2 and 3: Adaptation to climate change

Management of water status in vineyards: meta-analysis of its effects on yield and grape composition

Mediterranean vineyards have been traditionally grown under rainfed conditions, but in recent decades the irrigated area has increased significantly, seeking to minimize the adverse effects of severe water stress on grape quality and yield. Given the large area occupied by vineyards, and the increasing scarcity of water resources, it is necessary to develop strategies for the optimization and efficient use of water to reduce the risk of its overexploitation. The present study aims at valorizing previous knowledge generated in different research projects by means of a meta-analysis of the effects of water status management on vineyard performance.

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GiESCO 2023IVES Conference SeriesSessions 1, 2 and 3: Adaptation to climate change

An operational model for capturing grape ripening dynamics to support harvest decisions

Grape ripening is a critical phenophase during which many metabolites driving wine quality are accumulated in berries. Major changes in berry composition include a rapid increase in sugar and a decrease in malic acid content and concentration. Its duration is highly variable depending on grapevine variety, climatic parameters, soil type and management practices.

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GiESCO 2023IVES Conference SeriesSessions 1, 2 and 3: Adaptation to climate change

Understanding the impact of climate change on anthocyanin concentrations in Napa Valley Cabernet Sauvignon

Climate change is having a significant impact on the wine industry through more regular drought conditions, fires, and heat events, leading to crop loss. Furthermore, these events can reduce overall quality of the fruit, even when crop yields are not impacted. Anthocyanins are considered one of the most important classes of compounds for red wine production and are known to be sensitive to vine water status and heat events.

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GiESCO 2023IVES Conference SeriesSessions 1, 2 and 3: Adaptation to climate changeUncategorized

Applications of a novel molecular phenology scale to align the stages of grape berry development

Phenology scales widely adopted by viticulturists (i.e., BBCH or modified E-L systems) are classification tools that describe seasonal and precisely recognized stages of fruit growth and development based on specific descriptors such as visual/physical traits or easy-to-measure compositional parameters.

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GiESCO 2023IVES Conference SeriesSessions 1, 2 and 3: Adaptation to climate change

Vineyard altitude as a climate change adaptation strategy and its effect on Riesling during grapes and wine composition during ripening

Climate is one of the main drivers of spatial and temporal variability in grapevine physiology and therefore a key determinant of grape composition and final wine value. The world has warmed 1.1 °C since pre-industrial times, and the latest IPCC report indicates an additional 0.5 to 1.3 °C of warming by mid-century with continental locations warming at a greater rate than the oceans.

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GiESCO 2023IVES Conference SeriesSessions 1, 2 and 3: Adaptation to climate change

Fine-scale projections of future climate in the vineyards of southern Uruguay

In viticulture, climate change significantly impacts the plant’s development and the quality and characteristics of wines. These variations are often observed over short distances in a wine-growing region and are linked to local features (slope, soil, seasonal climate, etc.). The high spatial variability of climate caused by local factors is often of the same order or even higher than the temperature increase simulated by the different IPCC scenarios.

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