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Ampelometric features and index according to Németh [51]. Nomenclature of the ampelometric traits is not uniform in the literature, for example, indication of the veins is different. In this study, we follow the OIV [7] descriptor list, where the veins are indicated with “N” which is identical to abbreviation “L” in Ravaz [10] and Galet [39], and “E” in Németh [51] numbered from 1 to 5.
