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. The population of the variety Riesling italico was used as a standard. During the first three years of vineyard growing fertility, basic biological features of fertility and grape quality in studied varieties and clones were manifested. Highest grape yield was achieved in the variety Neoplanta, whilst best grape quality in the variety Petra. Clones of Riesling italico had higher fertility than the variety population, and clone SK54 produced highest yield and best grape quality.