Comparative studies on new wine-grape varieties and clones developed at Sremski Karlovci, on the Experimental estate of Agricultural Faculty, Novi Sad, were conducted in the 1997-1999 period. The studies comprised varieties Neoplanta (Smederevka x Traminer), Petra (Kunbarat x Pinot noir), Early Riesling (Riesling italico x Kunbarat) and clones of the variety Riesling italico: SK13, SK54, SK61.

In the period 1997-1999 comparative researches of the white wine varieties were conducted, viz. Smederevka, Italian Riezling, Riezling weisser (clone 239 Gm), Sauvignon white, Pinot blanc and Chardonnay (clone R8). In the first three years of the growing fertility of these varieties, their main biological characteristics and grape quality could be determined.

According to general characteristics of the climate of vineyard zones in Yugoslavia in 1976, ten (10) vineyard zones were established. For better presentation of the climate conditions of the vineyard zones of Yugoslavia in this work the data of 12 representative meteorological stations for the period 1951-1995 were used. Meteorological parameters are presented in tab.l and 2.