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…

Quantification of red wine phenolics using ultraviolet-visible, near and mid-infrared spectroscopy combined with chemometrics

The use of multivariate statistics to correlate chemical data to spectral information seems as a valid alternative for the quantification of red wine phenolics. The advantages of these techniques include simplicity and cost effectiveness together with the limited time of analysis required. Although many
publications on this subject are nowadays available in the literature most of them only reported feasibility
studies. In this study 400 samples from thirteen fermentations including five different cultivars plus 150
wine samples from a varying number of vintages were submitted to spectrophotometric and chromatographic phenolic analysis.

Read More

Viticultural zoning of central chile based on bioclimatic indexes and the impact of climate warming

Climate is considered one of the main factors that determines the aptitude of a specific location for growing grapes and producing high quality wine, being in that sense one of the main elements defining the concept of terroir

Read More

Application of ultrasonic and refractometric measurements in enological samples and related model solutions

AIM: The refractive index is a basic optical property of materials and a key tool for the determination of major components in musts, such as sugars

Read More

Grape ripening timing as a base for viticultural zoning: an agro-ecological approach

Due to the central role of the ripening timing in the evaluation of the varietal response to the environmental resources, a method to manage maturation curves has been developed. The method produces an index of veraison precocity and overcomes several methodological problems, like the visual evaluation of the veraison point and the multi-annual and multi-varieties data processing. It is based on a statistical and mathematical processing of the sugar ripening curves.

Read More

The effect of soil and climate on the character of Sauvignon blanc wine

Un projet multidisciplinaire sur l’effet du sol et du climat sur la qualité du vin a débuté en Afrique du Sud il y a 5 ans. Des mesures sont effectuées sous culture sèche dans des vignes de Sauvignon Blanc dans six localités différentes, cinq dans le district de Stellenbosch et une à Durbanville.

Read More