engleski

Ampelographic characterisation and sanitary status of some endangered croatian native grapevine cultivars

At the end of 19th century there were more than 400 grape cultivars grown in Croatia, most of them ware considered autochthonous. Unfortunately, after beginning of 20th century drastic erosion of autochthonous cultivars has occurred. Today there are still more than 120 native cultivars with most of them being properly conserved and evaluated. However, there are still many vines in old and abundant vineyards, representing old autochthonous cultivars that can not be positively determined by simple inspection. As a part of the project ERA 91/01 “Preservation and establishment of true-to- type and virus free material of endangered grapevine cultivars in Croatia and Montenegro” detailed ampelographic and enological characterization of some underutilized native Croatian cultivars was performed. Ampelographic characterization was carried out using set of 45 OIV-descriptors on 28 cultivars. After microvinification, chemical and sensory analysis of wines of six cultivars medium or high qualitative potential was determined, giving good perspective for their revitalization. Sanitary status of five cultivars was assessed by ELISA test for presence/absence of four economically important viruses: GFLV (Grapevine Fanleaf Virus), ArMV (Arabis Mosaic Virus), GLRaV-1 and GLRaV-3 (Grapevine Leafroll Virus -1 and -3). Different level of virus infection was detected ranging from 7-90%, with GLRaV-1, and GLRaV-3 as the most common viruses. EU-vitis database (www.eu- vitis.de) format was followed and our results will be stored and available in this database.

Vitis vinifera; grapevine; native cultivars; revitalisation

nije evidentirano