Sanitary status of slovenian indigenous grapevine cultivar Refosk

Abstract

Sanitary status of visually selected and nonselected indigenous grapevine cultivar 'Refosk' (Vitis vinifera L. cv. 'Refosk') was evaluated. Nine viruses were tested by ELISA: Nepoviruses Grapevine fanleaf virus (GFLV) and Arabis mosaic virus (ArMV), Closteroviruses Grapevine leafroll associated viruses 1 (GLRaV-1), 2 (GLRaV-2), 3 (GLRaV-3), and 6 (GLRaV-6), Grapevine fleck virus (GFkV) and Vitiviruses Grapevine virus A (GVA) and Grapevine virus B (GVB). All viruses except ArMV and GVB were detected. The vines of cv. ‘Refosk’ passing the visual selection were 50 % free of tested viruses in comparison to only 24 % virus-free vines of non-visually selected material. Visually selected plants revealed the highest incidence of virus GLRaV- 1 (37 %) and in addition to that a 15 % incidence of rugose wood (RW) disease symptoms.