1 PRINOS I KVALITETA GROŽA cv. SAUVIGNON BIJELI NA KARBONATNIM TLIMA PLEŠEVIKOG VINOGORJA Yield and grape quality of cv. Sauvignon white on calcareous soils of Plesevica wine region M. Herak-usti 1 , D. Gluhi 2 , M. Petek 1 , L. oga 1 , S. Slunjski 1 1 Zavod za Ishranu bilja, Agronomski Fakultet, Svetošimunska 25, 10 000 Zagreb 2 Institut za poljoprivredu i turizam, Karla Huguesa 8, 52 440 Pore Corresponding author:, tel.: +385/52/408300, fax.: +385/52/431659, e-mail: david@iptpo.hr Sažetak Smanjenje prinosa i kvalitete groža pri uzgoju vinove loze na karboantnim tlima, je vrlo uestala pojava u vinogradarskoj proizvodnji. Meutim, utjecaj koliine karbonata u tlu, nije jedini faktor koji utjee na visinu prinosa i na kvalitetu groža. U pokusu se istraživalo na 3 lokacije na podruju Pleševikog vinogorja, od kojih jedan ima umjereno visku koliinu vapna dok ostale dvije lokacije imaju visoke koliine vapna u tlu. Na svim vinogradarskim položajima grože iz klorotine zone nije dalo zadovoljavajue rezultate, dok je jedino grože iz neklorotine zone na loakciji Šipkovica bilo zadovoljavajue i po prinosu i po kvaliteti. Abstract The reduction of yield and quality of grapes grown on limestone soils is very often in modern viticulture. But, the influence of limestone content in soils is not unique factor, which have strong influence on yield and quality parameters. This research was conduced on three typical vineyards on Plesevica wine region (about 30 km, south-west of Zagreb). One of them has the modest limestone content in the soil until the next two vineyards have elevated content of limestone in soil. The quality of grape from chlorotic zone, were unsatisfied on all three locations. On location Sipkovica the difference between parameters on chlorotic and non-chlorotic were not statistically significant and the values of investigated parameters were very similar. Kljune rijei: Sauvignon bijeli, prinos groža, kvaliteta groža, Pleševiko vinogorje Key words: Sauvignon white, grape yield, grape quality, Plesevica wine region