SUMMARY
Researches were conducted between 2008-2010 and were applied to over 100 local varieties and biotypes from Western part of Romania; 10 biotypes of those were retained as being valuable for research: Mustoasa de Maderat, Negru de Mâsca, Frumoasa alba de Paulian, Coada de Vulpe, Aromat alb de Silagiu, Frumoasa alba de Maderat, Alb verzui de Ghiroda, Patrujarca de Buzias, Fraga alba de Silagiu, Ruginiu de Silagiu. Observations and measurements were performed on these cultivated biotypes by using both a minimal and an elaborated technology. The following results were analyzed, as opposed to a reference variety (Chasselas dore): buds viability, production per vine and per hectare, average weight of a bunch, resistance to diseases and pests, sugar content and acidity of the grapes. The results revealed suitability of these varieties for sustainable viticulture, and quantitative and qualitative increrase is realized when applying advanced technology.