RESEARCH ON THE BEHAVIOR OF SOME AUTOCHTHONOUS GRAPEVINE CULTIVARS WITH RED WINE GRAPES IN THE SANDY SOILS OF SOUTHERN OLTENIA

Abstract

The research carried out in the period 2021-2023 followed the behavior of four red wine grape cultivars (ˈBăbească neagrăˈ, ˈHaiducˈ, ˈNovacˈ, ˈPandurˈ), studied in the ampelographic collection of the Research and Development Station for the Culture of Plants on Sands Dăbuleni. The obtained results showed that the beginning of bud burst phenophase of these red wine grape cultivars started in the period April 17-24, the earliest being ˈNovacˈ, which beginning of bud burst in the period April 17-May 10. In terms of productivity, the Novac cultivar stood out with a grape yield of 20931 kg/ha, registering a difference of 5061.5 kg/ha compared to the control, statistically assured as significant. The quality recorded at harvest maturity of the grapes showed total sugar content values ranging from 182 g/l for the ˈPandurˈ cultivar to 201 g/l for the ˈBăbească neagrăˈ and ˈNovacˈ cultivars