7. International Agricultural Congress, İzmir, Turkey, 15 - 17 October 2021, pp.32
Mastic tree (Pistacia lentiscus var. chia Duham.), is a medicinal-aromatic plant which is widely used in different industrial applications due to it’s high volatile oil and resin content. In this research contents of some micro elements in leaves and resin yield of trees at two different phenological stages and four different ZnSO4 levels were determined in mastic tree which had not fertilization in practice. Results showed that foliar ZnSO4 applications significantly effected the Zn content of leaves at both stages, Cu and Mn at the 1st stage, only B content at the 2nd stage. At the consecutive stages of 50% and 100% leafing, foliar Zn aplication at 0.8% ZnSO4 level would be proper for Zn contents of leaves and at 0.4% ZnSO4 level would be proper for mastic resin yield of trees. The effects of zinc applications on resin yields were not significant statistically.