Evaluation of Som Introduced Grape Varieties in Swieda Province

Abstract

This study was carried out at the General Commission for Scientific Agriculture Research – Pome and grapevine Division, during 2012 and 2013, to evaluate nine of introduced grape varieties under rainfed condition in Swieda province. The results showed that the burst of buds in all studied varieties was at the end of April and the beginning of May, and the clusters of all of them matured at the second half of September and the beginning of October. The number of clusters per shoot was the highest (2.06 cluster) in Riesling variety, while the highest base buds fertility percent was 97.8% in Sauvignon variety, Tempranillo variety gave 4.272 ton . donom^-1 which was the maximum one among all the investigated varieties. The cluster weight of Ugni Blanc variety was 533 g, on the other hand the cluster of  Oni Blanc and Tempranillo varieties was long to very long. The production of juice was the highest (77ml/100g) in Silvaner variety, and the total soluble solids was between 19.8% in Ugni Blanc variety and 23.6% in Cabernet Souvignon variety, which also revealed the highest total sugar content. Consequently, these results indicated to the superior traits of the studied varieties, and the importance of studying the probability to be used in various industrial fields and different environments which in turn develop the grape production and the economical profit.