terclim by ICS banner
IVES 9 IVES Conference Series 9 Protection of genetic diversity: maintenance and developements of a grapevine genebank in Hungary

Protection of genetic diversity: maintenance and developements of a grapevine genebank in Hungary

Abstract

Among the items preserved in gene banks, the old standard and autochthonous varieties represent an increasing value, since these varieties may have properties to make their cultivation more effective under changing climatic conditions. The increasingly extreme weather is a huge challenge for the viticulture. Collectional varieties can also play important role in protection against pests and pathogens. A genebank ensures not only the preservation of rare varieties, but also gives the opportunity for more knowledge and research of these varieties.
Our main goal is to further develop national grape database, namely collecting and managing ampelographic and ampelometric descriptive data (OIV descriptors), imaging files, providing information on the origin of the varieties based on the data related to their pedigree, including parents, family trees and offspring.
We examine all 1.570 items in our gene bank with special attention to about 117 grape varieties autochthonous to the Carpathian Basin. From this collection more than 50 varieties can neither be found in national genebanks, nor in larger international collections, such as Bakhtiori Chernyi, Balsare Blanc, Cornucopia, Jabizlak, Piros Gránát, Kárpáti Rizling, Krabljak, Sesh i Zi, Polombina, or Tuingirni kara. Some of them are native to the Carpathian Basin, while others are mostly oriental origin. The genebank contains individuals propagated from the methuselah vine stock of Europe, such as the 450-500-year-old Rosa Menna di Vacca in city of Pécs (validated by SSR markers). Our research is also enriched by the Zametovka variety growing in Maribor (Slovenia), which considered as the oldest vine in Europe.
As a result of our work, the database system will also provide data obtained by molecular methods (SSR, SNP), which identify the genotypes supporting for the discovery of further relationships and for further research about the origin of the domesticated grapevine.
The most important international and autochthonous varieties of the genebank will be analyzed on berry skin and flesh anthocyanin composition as well as aroma profiles.

Download the abstract

DOI:

Publication date: June 14, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Krisztian Gaal1, Janos Werner1, Balazs Szabo1, Martin Pour Nikfardjam2, Peter Teszlak1

1 University of Pécs, Research Institute for Viticulture and Enology H-7634 Pécs, Pázmány P.u.4., Hungary
2 Staatliche Lehr- und Versuchsanstalt für Wein- und Obstbau D-74189 Weinsberg Weinsberg Traubenplatz 5, Germany

Contact the author*

Keywords

Grapevine, Germplasm, Autochthonous varieties, Maintenance, Clonal selection, Breeding

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Seed phenolics oxidation: development of a new ripening index 

During ripening seed tannins evolve, as demonstrated by the taste and color changes. In this work we tried to develop an objective, easy and fast index, useful for winemakers. In this direction we propose two different spectrophotometric indexes, one related to the molecular structure and tannin subunits linkages, and the other related to the antioxidant properties. Especially the second one gave very interesting and unexpected results.

Read More

Learning from remote sensing data: a case study in the Trentino region 

Recent developments in satellite technology have yielded a substantial volume of data, providing a foundation for various machine learning approaches. These applications, utilizing extensive datasets, offer valuable insights into Earth’s conditions. Examples include climate change analysis, risk and damage assessment, water quality evaluation, and crop monitoring. Our study focuses on exploiting satellite thermal and multispectral imaging, and vegetation indexes, such as NDVI, in conjunction with ground truth information about soil type, land usage (forest, urban, crop cultivation), and irrigation water sources in the Trentino region in North-East of Italy.

Read More

Perception of Rose Oxide Enantiomers, Linalool and α-Terpineol to Gewürztraminer Wine Aroma

Monoterpenes are important aroma compounds in white wines. Many monoterpenes are chiral and the chiral forms have different aroma qualities.

Read More

Ceramic imprint in wine: influence of hydraulic ratio on ceramic dissolution and wine pH in amphorae systems

This interaction is primarily due to an acidic attack on the ceramic by the wine. It results in (1) the dissolution of the ceramic into the wine and the release of a wide variety of elements; and (2) an increase of the wine pH. The extent of these effects depends on the mineralogical and chemical composition of the ceramic, as well as the hydraulic ratio of the ceramic-wine system (the term hydraulic ratio (ρ) defines here the volume of wine over the surface area of the ceramic in contact with the wine).

Read More

European consumer preference for wines made from fungus resistant grape varieties

Fungus resistant grape varieties (FRGV or PIWI) offer many benefits such as less pesticide use or premium prices for enhanced sustainability. Still, winemakers are concerned about inferior wine quality. This study evaluates how European wine consumers assess wines made from new FRGVs in comparison to traditional V. vinifera varieties. Most of them were grown in the same vineyard. Four white (Calardis Blanc, Muscaris, Sauvignac, Cabernet Blanc) und three red (Satin Noir, Cabernet Cortis, Laurot) FRGV were compared to Riesling, Sauvignon blanc, Muskateller, Cab. Sauvignon and Merlot. For each FRGV, different styles were vinified using standardized protocols.

Read More