This paper presents results of monitoring the production of olives Velika sitnjaka, Sitnica, Uljarica and Kalamate in 2016, on the impact of different concentrations of phytohormone IBA (2000, 3000, 4000 and 5000 ppm) and compares them with the results obtained in 2015 for the same varieties. The research is a part of the project "Identification and management of genefund olives in the Dubrovnik Neretva County" that was carried out in the Institute for Mediterranean Plants, University of Dubrovnik. In 2016, the cultivar Velika sitnjaka had 92,3% ooting of with the applied concentration of 4000 ppm of IBA. In 2015 and 2016, the greatest potential of rooting of the Sitnica cultivar was also established at the IBA concentration of 4000 ppm, while the Uljarica cultivar in the course of both years had the highest percentage of rooting at concentration of 2000 ppm of IBA. The Kalamata cultivar showed the greatest potential of rhizogenesis in both years, at a concentration of 3000 ppm of IBA, with the same rooting percentage of 15%.

U radu su prikazani rezultati praćenja proizvodnje reznica sorti masline Velike sitnjake, Sitnice, Uljarice i Kalamate u 2016. godini pod utjecajem tretiranja različitim koncentracijama fitohormona IBA (2000, 3000, 4000 i 5000 ppm) te su uspoređeni s rezultatima dobivenim u 2015. godine za iste sorte. Istraživanja su dio projekta Identifikacija i gospodarenje genfondom maslina na području Dubrovačko neretvanske županije” i provedena su na Zavodu za mediteranske kulture Sveučilišta u Dubrovniku. Sorta Velika Sitnjaka je 2016. godine imala postotak ožiljavanja od 92,3% s koncentracijom IBA od 4000 ppm. Sitnica je 2015. i 2016. godine najveće potencijale rizogeneze imala također s koncentracijom IBA od 4000 ppm, dok je Uljarica u obje godine najveće postotke ožiljavanja imala s koncentracijom IBA od 2000 ppm. Kalamata je najveće potencijale rizogeneze u obje godine pokazala s koncentracijom IBA od 3000 ppm s istim postotcima ožiljavanja (15%).