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Abstract
Egyptian olive oil genotypes ”Sewia, Maraki and E52” were compared with two international ones ”Coratina and Koroneiki” during the seasons of 2011and 2012. Results showed that, Maraki had higher tree height(m), canopy surface area (m²), canopy volume(m³) than the other genotypes whereas E52 recorded the lowest ones in both seasons. Time of flowering varied according to cultivars and season. Coratina, Maraki and Sewia were earliest than Koroneiki, but it was late in E52. Coratina had longer inflorescence (>3.5 cm), but that of others were medium (2.5-3.5 cm). The highest number of flowers per inflorescence (> 25) was recorded in Maraki and the lowest number (<18) was recorded in Koroneiki. Perfect flower percentage varied according to genetic factors and to climate.