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…

Vitis vinifera ‘Ráthay’ on the rootstocks ‘Kober 5BB’, ‘Fercal’, and ‘3309 C’: results of a long-term field trial

Context and purpose of the study. Ráthay is an Austrian red quality wine variety with increased resistance to fungi.

Read More

Influence of vine spacing on water status, productivity, yield and must composition in Tempranillo grapevine under Duero Valley zone conditions

L’objectif de cette étude est analyser l’influence de la densité de plantation sur l’état hydrique (potentiel hydrique), le comportement productif (matière sèche et rendement) et la expression qualitative (poids de baie, degrée Brix, pH, acidité totale, concentration polyphénolique) de la varieté Tempranillo dans la Vallée du Douro, à l’A.O. Cigales.

Read More

Spontaneous fermentation dynamics of indigenous yeast populations and their effect on the sensory properties of Riesling

Varietal Riesling aroma relies strongly on the formation and liberation of bound aroma compounds. Floral monoterpenes, green C6-alcohols, fruity C13-norisoprenoids and spicy volatile phenols are predominantly bound to disaccharides, which are produced and stored in the grape berry during berry maturation. Grape processing aims to extract maximum amount of the precursors from the berry skin to increase the potential for a strong varietal aroma in the wine. Subsequent yeast selection plays an important part in this process.

Read More

Effect of potential crop on vine water constraint

It is important to quantify the effect of potential crop on vine water constraint in order to adapt vine-growing consulting and vine management to the Mediterranean climate conditions

Read More

Influence of the number of CPPU applications on growth, mineral composition and Bunch Stem Necrosis incidence in table grape clusters

The forchlorfenuron (CPPU) application is recommended in table-grape after fruit-set to boost berry sizing, albeit growers also apply CPPU during pre-flowering with controversial advantages. We examined the effect of single (BBCH 15) and double (BBCH 15 and 57) CPPU applications (2.25 mg/L a.s.) in a commercial vineyard. At each time, 75-100 bunches belonging to 6-9 vines were sprayed, and compared with unsprayed (CTRL). Leaf stomatal conductance (gs), cluster stem diameter and length were measured. At harvest, 25 berries/repetition were sampled for chemical composition, BSN incidence was counted (N° necrotic laterals/10 cm of stem) in 40 bunches/repetition. To test the role of air VPD on mineral composition, at BBCH 77, 50 CTRL clusters were bagged to induce a low VPD.

Read More