| Popis: |
Most of the production of seedless grapes ( Vitis vinifera L.) in Turkey is covered by the Aegean region, mainly in Manisa Province. It accounts for a significant part of the export (80%). One of the widespread micro element deficiencies in the soils of the Aegean Region in Turkey is Fe deficiency (Fe chlorosis). The inorganic Fe salts applied into the soils or sprayed on the leaves and organic chelates containing Fe such as FeEDTA or FeEDDHA have been used to correct Fe chlorosis in recent years. The aim of this study was to determine the effects of different FeEDDHA dosages on some yield quality parameters (total soluble solids %, pH, titratable acidity %, total Fe and active Fe content in leaves) of fresh grapes and some macro-and micro elements (N, P, K, Ca, Mg, Fe, Zn, Mn, Cu, active Fe) in leaves. In the study, four different doses of FeEDDHA (0, 20, 40, 60 g(-1)) were applied to the soil. It was found that there was less N deficiency but more P and K deficiency in the vineyard. Moreover, Ca, Mg, total Fe, Zn, Mn, and Cu deficiency were not observed in the vineyard. The yield of fresh grapes increased with the iron content, with the most efficient result obtained at a level of 20 g(-1) FeEDDHA. |
