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¹ Aydın Adnan Menderes Universtiy, Graduate School of Natural and Applied Sciences, Department of Horticulture, 09970, Aydın, Türkiye
² Aydın Adnan Menderes University, Faculty of Agriculture, Department of Horticulture, 09970, Aydın, Türkiye DOI : 10.16882/HortiS.1911753 Viewed : 44 - Downloaded : 38 This study aimed to determine the self-fertility status of 'Tavşan Yüreği' olive variety and to identify suitable pollinator varieties. In this study, controlled pollination applications were carried out with `Erkence`, `Gemlik`, `Memecik` and `Uslu` olive varieties, and self-pollination and open pollination applications were performed to determine the self-fertility status of the variety. As a result of controlled pollination applications, `Uslu` olive variety achieved the highest fruit set rates of 3.14% and 3.09% in both years. `Gemlik` and `Memecik` olive varieties, in both years, achieved adequate fruit set rates of 2.17-2.87% and 2.85-2.25% respectively, placing them in the good pollinator category. In self-pollination applications, fruit set rates obtained were determined to be in self-incompatibility category according to `relative fertility index` category for the `Tavşan Yüreği` olive variety. These results indicate that in orchards planted with the `Tavşan Yüreği` olive variety, due to the variety's self-incompatibility, the `Uslu`, `Gemlik`, and `Memecik` olive varieties should be included as pollinator varieties at a rate of 10%, in that order of priority. Pollen viability and germination tests were performed by using 2,3,5 Triphenyl Tetrazolium Chloride (TTC) and agar in petri dishes (15% sucrose + 1% agar + 100 ppm H3BO3) methods in the study. Although pollen viability and germination rates varied depending on the year and variety, they were found to be at a sufficient level for fertilization and fruit set. Keywords : Compatibility index Pollen germination Pollen viability Self-fertility Self-incompatibility