Effects of cluster reduction, herbagreen and humic acid applications on grape yield and quality of Horoz Karasi and Gk zm grape cultivars

摘要

his study was carried out in?5?BB?rootstock?grafted on Horoz Karasi and G?k üzümgrape varieties?(Vitis vinifera?L.)?during the 2010 growth season. Effects?of 1/3 clusterreduction (CR),?1/3 CR + herbagreen (HG) and 1/3 CR + humic acid (HA) applications on?grape?yield?and?quality of cultivars?were examined. The results showed that?1/3?CR?+ HA?application increased?grape?yield,?berry weight, berry?redand?blue?color?intensity?values of Horoz Karasi?grape?variety and 1/3?CR?application increased grape?yield and maturity?index values of G?k üzüm?grape?variety.