Autochthonous Georgian and Dagestan grapevine varieties on the collection in the Rostov region

Valentina Ganich,Lyudmila Naumova,D Rudoy,V Kankhva,A Olshevskaya

doi:10.1051/e3sconf/202021005005

Abstract

The purpose of the research was to study 8 Georgian and 3 Dagestan technical autochthonous grapevine varieties and identify the most productive and promising ones for high-quality winemaking in the Rostov region. The research was conducted in 2016-2019 at Don ampelographic collection named after Ya.I. Potapenko (Novocherkassk, Russia) according to generally accepted methods and state Standards in viticulture. Don autochthonous varieties Sibirkovyij and Krasnostop zolotovskij were used as controls. The soil - ordinary Chernozem carbonate. All the studied varieties had a high percentage of bud break (from 69.3% in Hotsa tsibil to 81.2% in Mahbor tsibil). The fruiting coefficient of 1.0 or more was observed in 6 varieties. The average weight of a bunch varied from 74 g (Mudzhuretuli) to 459 g (Adreuli shavi). The estimated yield was very high for the varieties – Adreuli shavi and Nakutvneuli, high – Goruli mtsvane, Hotsa tsibil, medium – Latsu kere, Grdzelmtevana, Grubela, Amlakhu, Sibirkovyij, Vernakhi and Krasnostop zolotovskij. Grapevine varieties – Goruli mtsvane, Grdzelmtevana, Grubela, Latsu kere, Hotsa tsibil, Nakutvneuli were selected as prospective due to agronomic traits and high quality of wine. These varieties are also recommended to be used in breeding for creating varieties with high technological properties for high-quality winemaking.

Highlights

The purpose of the research was to study 8 Georgian and 3 Dagestan technical autochthonous grapevine varieties and identify the most productive and promising ones for high-quality winemaking in the Rostov region
Mobilization of genetic resources in ampelographic collections of different countries of the world is important for the preservation, replenishment and study of the grape gene pool
There are more than 150 Dagestan local varieties, and many of them are used for the production of high-quality table, liqueur wines and cognacs

Summary

Introduction

The purpose of the research was to study 8 Georgian and 3 Dagestan technical autochthonous grapevine varieties and identify the most productive and promising ones for high-quality winemaking in the Rostov region. Grapevine varieties – Goruli mtsvane, Grdzelmtevana, Grubela, Latsu kere, Hotsa tsibil, Nakutvneuli were selected as prospective due to agronomic traits and high quality of wine. These varieties are recommended to be used in breeding for creating varieties with high technological properties for highquality winemaking. Microsatellite markers used to differentiate grapevine specimens can effectively complement ampelographic characteristics and are generally used as an advanced molecular management tool within the Vitis genetic resource collection, such as identification and distinction of genotypes, study of genetic diversity, collection creation, study genealogy and verification These studies allow identifying synonyms, confirming or refuting the previously assumed relationship with varieties from other countries and regions, clarifying the origin (parental forms) of a variety, and proving genetic similarity between autochthonous varieties [5-12]. There are more than 150 Dagestan local varieties, and many of them are used for the production of high-quality table, liqueur wines and cognacs

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Results