AUTOCHTHONE GEORGIAN GRAPE VARIETY GRDZELMTEVANA IN THE NIZHNEE PRIDONIE CONDITIONS
DOI:
https://doi.org/10.30850/vrsn/2021/4/28-31Keywords:
grapes, ampelographic collection, Lower Don region, introduction, autochthonous varieties, yield, sugar content in grape berries, degustation evaluationAbstract
The purpose of the research is to study the autochthonous Georgian grape variety Grdzelmtevana in the Pridonie region to identify the adaptive, economic and technological potential in comparison with the control Riesling Rhine variety. The studies were carried out at the Donskaya ampelography collection YA.I. Potapenko (Novocherkassk, Russia) in 2016–2020 Agrobiological using modern and classical study methods. The wines were prepared according to the classic technology of winemaking for dry white wines. On the basis of the conducted studies it was concluded that the Grdzelmtevana grape variety adapted well in the Pridonie region, has high rates of buds break and an average bunch weight. It surpasses the control grape variety in terms of productivity by twice as much and at the wherein has a higher accumulation sugar of grapes berries and optimal titratable acidity of berry juice for obtaining high quality table dry white wines. Degustation evaluation oа wine is 8,6 points ( for 10 point scale). Therefore, the Grdzelmtevana grape variety introduction into the State Register of Grapes for the Pridonie region will diversify the assortment of wine products, satisfying different consumer tastes.
