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The number of perfect and staminate flowers in three native Iranian cultivars of olive (Olea europea L.): Rowghani, Mary and Feishami, and the rate of self- pollination, cross-pollination, self+cross—pollination and fruit abscission in two cultivars Rowghani and Mary were studied. The highest percentage of perfect flowers belonged to Feishaini, Rowghani and Mary cultivars respectively. The percentage of self-pollination and self+cross-pollination in Mary cultivar was higher than Rowghani. The difference between the percentage of cross-pollination and fruit obscission in these cultivars was not significant.