- Selcuk Journal of Agriculture and Food Sciences
- Vol: 19 Issue: 36
- The Effect of Foliar Potasyum Nitrate (KNO3) Applicatıions on Yield and Some Quality Characteristics...
The Effect of Foliar Potasyum Nitrate (KNO3) Applicatıions on Yield and Some Quality Characteristics of Round Seedless (Vitis Vinifera L.) Grape Cultivar
Authors : Bülent Yağmur, Şenay Aydin, Harun Çoban
Pages : 106-109
View : 10 | Download : 16
Publication Date : 2005-08-25
Article Type : Research Article
Abstract :The potassium fertilization is most important for a production of good quality in vineyard. It was understood that the po-tassium fertilization was required at a major part of vineyard (50%) in Aegean region, especially Alaşehir province, and that it was un consciousnessly treated from foliar. Therefore, this investigation was conducted to determine the effect of foliar potas-sium nitrate (KNO3) applications at different levels on yield and some quality traits (pH, total soluble solids, titratable acidity, vitamin C ) of Round Seedles cultivar (Vitis vinifera L.) in Alaşehir. In experiment which was established with four replications, potassium nitrate (KNO3) was foliar applied at five different dose (0%-0.5%-1%-1.5%-2%) in three different times (before flowering, Fruit set and verasion). The foliar potassium fertiliza-tions caused to be significant effects on yield, total soluble solids and titratable acidity. The significant increases was obtained from second treatment (1%) for fresh grapes yield depending on the KNO3 applications. It was found that potassium applica-tions affected positively on the contents of N,P,K and Cu of fruit but did negatively on the content of Mg of fruit as compared to the control treatment.Keywords : Bağ, Vitis vinifera L., Potasyum nitrat, yapraktan uygulama.