Effect of Iron Applications on Fe, Zn, Cu and Mn Compositions of Grapevine Leaves

Abstract

In present study, different grapevine genotypes having different resistance levels to CaCO₃ were used as plant material. Genotypes were grown in pots including CaCO₃ concentrations of 10, 30 and 50 %. For each medium, 4 different soil with Fe applications were performed. These are: i) 20 ppm Fe (as FeSO₄) + farmyard manure (100 g/pot/5 kg soil), ii) 20 ppm Fe (as Fe-EDDHA) iii) 20 ppm Fe (as FeSO₄) + citric acid (as 10 % percentage of applied FeSO₄), iv) control (soil without Fe). In order to determine the effects of applications on micro element concentrations of leaves were examined. As a result of the study, Fe, Zn, Cu and Mn concentrations of all tested genotypes were decreased with increasing levels of CaCO₃. Applications of Fe-EDDHA and FeSO₄ + citric acid showed better results when all applications compared in respect of leaves Fe, Zn, Cu and Mn concentrations. The highest Fe, Zn, Cu and Mn concentrations were determined in Yalova incisi genotype.