Studies on the biological and productive potential of some table grape cultivars grown in the pedoclimatic conditions of southern Oltenia

Abstract

The researches carried out followed the potential of some vine cultivars with table grapes, from the point of view of biology and the grape production of the cultivars, from the ampelographic collection of the Research – Development Station for Plant Culture on Sands Dabuleni. During the three years of the study, the vine cultivars with table grapes cultivars budded between April 12 and May 10, the 'Victoria' and 'Prima Cl. 1022' cultivars budded between the earliest, and the latest 'Moldova' cultivar. The point of view of the average production of grapes, in the analyzed period the cultivars 'Prima Cl. 1022' stood out, 17389 kg/ha with a difference from the witness of 2809 kg/ha and 'Perla de Zala' 15527 kg/ha with a difference from the witness of 947 kg/ha, both statistically uninsured. The values of the content in total sugars, at harvest maturity, fluctuated from one cultivar to another but also from one year to another. From this point of view, the first place was the 'Perla de Zala' cultivar with an average amount of total sugars of 207 g/l and a difference compared to the witness of 73 g/l, statistically assured as significant. In the period 2020-2022, the table grape vine cultivars analyzed behaved differently depending on the climatic conditions of the crop year.