). Preliminary Compatibility between Some Table-Grapevine Scion and Phylloxera- Resistant Rootstock Cultivars

Abstract

A trial of seven scion grape cultivars (Beiroti, Dapogi, Fhesi, Hamadani-Baladi, Jandali, White-Romi and Zeiny) and five phylloxera resistant rootstock cultivars (Richter-110, Paulsen-1103, Ruggeri-140, B 41 and 216/3), in ddition to own rooted vines were undertaken to asses preliminary compatibility. The results indicated that 'Fhesi' and the combinations of Jandali/Richter-110, White-Romi/Ruggeri-140, White-Romi/216/3 and White-Romi/B 41 were highly compatible. Positive correlations between callus development, root development, and successful grafts were also observed. However, 'Hamadani-Baladi' and 'Zeiny' were significantly incompatible with less than 50% of graft-success. Time needed for buds-burst in the grafted combination was significantly less (33- 48 days) than that of the own rooted plant (60-66 days). Further research is needed for the prolonged compatibility effect on yield and quality.