engleski

Prevalence of Viruses in Autochthonous Grapevine Cultivars from Croatian Continental and Coastal Vine-Growing Regions

The investigation of occurrence of nine grapevine viruses (ArMV, GFLV, GFkV, GLRaV-1, 2, 3 and 7, GVA and GVB) using ELISA was conducted on Croatian autochthonous grapevine cultivars included in clonal selection from Coastal vine-growing region (Babić and Plavac mali) and from Continental region on cv. Moslavac and some cvs. typical for subregion Hrvatsko zagorje. Out of 383 tested plants 312 (81.5%) were infected with at least one virus, while mixed infections with two (28.9%) or even tree (17.8%) viruses were not rare, especially in Coastal region. In Continental region dominant viruses were GLRaV-1 (38.9%) and GFkV (31.1%), while in Coastal region dominant were GVA (72.2%) and GLRaV-3 (71.8%). Occurrence of GLRaV-1 (45.8%), GFLV (31.5%) and GLRaV-2 (10.7%) in Coastal region and GVA (22.2%) in Continental region was also notable.ArMV and GVB in both regions were found scarcely. In general, better sanitary status was determined in Continental region, especially in cv. Moslavac where almost 45% of analyzed plants were free of all viruses included in investigation. In cv. Babić virus-free plants were not found, while in case of cv. Plavac mali and cvs. from subregion Hrvatsko zagorje infection rates were very high (95.9% and 92% respectively).

Croatian autochthonous Vitis vinifera cultivars ; viruses ; ELISA

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