The Ondokuz Mayıs University Ali Nihat Gökyiğit Research Center has been working to develop disease and pest resistant varieties of the Nebiyan chestnut for 12 years. The center has registered four chestnut cultivars in collaboration with the OMU Faculty of Agriculture Department of Horticulture. This initiative aims to increase the production of Nebiyan chestnut by providing disease-free saplings to producers.