The performance of the sweet cherry (Prunus avium L.) cultivars '0900-Ziraat', 'Lapins', 'Kordia', 'Cristalina', 'Summit' and 'Sunburst', grafted on 'Gisela 5' (Gi.5) and 'Gisela 6' (Gi.6) rootstocks, was evaluated during 2002-2004 in Bayramic, Turkey. In recent years, these rootstocks have been used for establishment of new sweet cherry orchards in Turkey. Yields and pomological as well as phenological characteristics of these cultivars were determined.