 The study conducted in 2014 at Giresun Hazelnut Research Institute found that foliar boron treatments positively influenced cluster weight, width, and volume, as well as berry homogeneity in yielded more homogeneous appearance. Boric acid treatments also increased chlorophyll content and the greatest yield was obtained from 0.3% boric acid treatments. Leaf nitrogen, phosphorus, calcium, magnesium, zinc, and copper concentrations increased with increasing boron doses, while potassium and iron concentrations decreased. The study recommended 0.3% boric acid treatments for high quality and quantity yields in Isabella grape cultivar. This article was authored by Hatticee Byler Ekbik, Nian Gokdemir, and Halil Erdem.