Agrobiological and technological characteristics of variety Pinot Gris clone B10 and Pinot Gris clone Rulander 2/54 in the Nis subregion

In the period 2010-2011 years were studied agrobioioška and technological properties of clones of Pinot Gris (B-10 and Rulander 2/54) in Niš vineyard sub-region. Tests were conducted at the Center for Viticulture and Enology in Niš. Varying heights yield of grapes per year indicate a high and stable cropping investigated clones. Must sugar content varied from 21,31 to 22,79%, and total acid content ranged from 7,66 to 8,09 gl-1. Chemical Two-Analysis wines showed that the resulting wines of good quality. The research results justify the growing clones of Pinot Gris in Niš vineyard sub-region.