SUMMARY
Five wine grape varieties (Aromat de Iasi, Pink Traminer, Italian Riesling, Feteasca regala, Muscat Ottonel ) were tested in 2007, in Gherla, Cluj county, Romania, under two types of cultural practices: organic and conventional. The conventional system has comprised the use of two systemic fungicides: Ridomil gold MZ 68WP and Melody Duo 66,8 WP and two contact fungicides: Folpet 50 WP and Dithane M 45 in the interval may 3rd decade until June the 1st decade. The organic treatments were applied in the same interval with the following products: Bordeaux mixture 0,5% + purine of greater nettle fermented 1/20 dillution and copper sulphate 1% and at the end of the interval, with Bordeaux mixture 1% + soluble sulphur 0,4% and Trichodex 25 WP. In this study the following parameters were observed for the five wine grape varieties: the number of grape clusters on vine stock, the average weight of the grapes, the absolute productivity index (API), the relative productivity index (RPI) and the grape production. The experiment was a bifactorial one (type of culture x cultivar) with four table grape varieties grown in two types of culture systems (conventional and organic). The Feteasca regala and Italian Riesling varieties, cultivated in an organic system has registered higher values for almost of the studied parameters by comparison with values from the other three types in the conventional system, which suggests that there is a possibility of choice, from the present wine types of cultivars with a high adaptability to the organic culture system.