COMPARATIVE AGROBIOLOGICAL STUDY OF GRAPEVINE CULTIVARS FOR RED WINE PRODUCTION
A comparative agrobiological study of grapevine cultivars for red wine production has been conducted. The study found statistically proven differences of the majority of the studied ampelographic indices of the cultivars. On that basis, the cultivars can be sorted out into four groups. Such features as cluster weight, bunch length and width, and length and width of a berry play a major role on the harvest, and can be grouped as factors F<sub>1</sub> to F<sub>3</sub>. There are some other factors influencing the harvest structure, in addition to the ones analysed by us.