terclim by ICS banner
IVES 9 IVES Conference Series 9 Veraison as determinant for wine quality and its potential for climate adapted breeding

Veraison as determinant for wine quality and its potential for climate adapted breeding

Abstract

The evaluation of new grapevine genotypes regarding their potential to produce high quality wines is the time limiting factor in the process of grapevine breeding. Hence, the development of quality-related markers useable in marker-assisted selection (MAS) as well as in prediction models for this bottleneck trait will tremendously enhance breeding efficiency. In extensive studies a training set of a segregating white wine F1 population (150 F1 genotypes = POP150; `Calardis Musqué´ x `Villard Blanc´) was deeply phenotyped and genotyped for model development and QTL analysis.

The high variance in ripening time within this population was identified as major factor influencing the quality potential of the individual genotypes. This is mainly induced by the early veraison locus Ver1 on chromosome 16 genetically inherited by ‘Calardis Musqué’. Ver1 could be traced back to the early ripening ‘Pinot Noir’ (PN) clone ‘Pinot Precoce Noir’ (PPN). Many important quality attributes of the population were directly affected, especially sugars, organic acids, pH value and key aroma compounds. For some of these constituents the Ver1 locus shows the highest genetic impact in QTL analysis. Understanding the genetic base of ripening and the subsequently resulting effects on quality offers breeders knowledge and helpful tools for the early and efficient selection of genotypes carrying hidden (at least until the first full yield) potential for quality oriented climate-adaption. Furthermore, it enables the implementation of additional selection criteria in marker-assisted selection (MAS), when stacking of resistance loci is no longer the limiting factor in seedling production.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Tom Heinekamp1, Franco Röckel1, Maria Maglione1, Lena Frenzke2, Torsten Wenke2, Jochen Vestner3, Stefan Wanke2, Ulrich Fischer3, Reinhard Töpfer1, and Florian Schwander1*

1Institute for Grapevine Breeding Geilweilerhof, Julius Kühn-Institut, Siebeldingen, Germany
2Technische Universität Dresden, Institut für Botanik, Dresden, Germany
3Dienstleistungszentrum Ländlicher Raum (DLR) Rheinpfalz, Institute for Viticulture and Oenology, Breitenweg 71, Neustadt an der Weinstraße, Germany

Contact the author*

Keywords

climate change, wine quality, cool climate viticulture, marker development

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Challenges and opportunities for increasing organic carbon in vineyard soils: perspectives of extension specialists

Context description and research question: an increasing number of farmers are considering the impact of conservation practices on soil health to guide sustainable management of vineyards. Understanding impacts of soil management on soil organic carbon (SOC) is one lever for adoption of agroecological practice with potential to help maintain or improve soil health while building SOC stocks to mitigate climate change (Amelung et al., 2020).

Read More

Climate effect on ripening process in Vitis vinifera, L. cv. Cencibel

A seven years survey (2003 to 2009) has been carried out over old traditional vineyards cv. Cencibel in La Mancha region (Spain). Seven plots with more than 35 years old were sampled from veraison to harvest, measuring soluble solids (ºBaumé) and acid concentration (g/l in tartaric acid).

Read More

Unveiling the viticultural heritage of Rachaya, Lebanon: genetic, ampelographic and chemical profiling of local grape varieties

Located in the western bekaa region of lebanon, rachaya is known for its extensive history of viticulture and ideal mediterranean conditions for grapevine cultivation. Despite the area’s importance in grapevine production, there is limited knowledge about the local grape varieties grown there. In this work, we conducted a detailed analysis of five local grapevine varieties in the area, obeidy, kassoufi, foddeh, aswadi, and maryami, of which little is currently known, in comparison to a set of international varieties.

Read More

Assessing the Effectiveness of Electrodialysis in Controlling Brettanomyces Growth in Wine

Brettanomyces yeast can negatively impact the quality and stability of wines, posing a significant challenge to winemakers. [1] This study aims to develop novel management practices to limit Brettanomyces impact on wines by evaluating the effectiveness of electrodialysis (ED) technology in removing magnesium (Mg2+) from wine to prevent the development of Brettanomyces yeast. The ED technique utilizes charged membranes to extract ions from the wine, and it is considered an alternative to cold stabilization that requires less energy. [2]

Read More

Mannoprotein extracts from wine lees: characterization and impact on wine properties

This study aims at exploiting an undervalued winemaking by-product, wine yeast lees, by developing efficient and food-grade methods for the extraction of yeast glycoproteins. These extracts were then supplemented to wine and their impact on wine properties assessed.

Read More