Tests were carried out on the influence of low temperatures during winter dormancy on per cent of central and lateral buds freezing in Merlot Standard and its varieties. The method applied was in vitro artificial freezing of cuttings of one-year-old shoots in cold storage. Three low temperatures were applied: -15°C, -20°C and -25°C. Tests were performed simultaneously in all varieties three times during winter on December 25, January 25 and February 25 in 1998, 1999 and 2000.

In this study five different substrates were used, such as: compost; mixture of compost, Lumbrikus H and garden soil; mixture of compost and Lumbrikus H; mixture of compost, Lumbrikus H and peat Galicina and Seedling Klassman substrate. Basil seedling was produced in containers according to "speeding" system. The studies have shown that the best quality of basil seedling of varieties Genovese and Lattuga is achieved when the mixture of substrates Compost, Lumbrikus H and Galicina peat are applied in the volume proportion of 50% : 30% : 20%.

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.