TECHNOLOGICAL CHARACTERISTICS OF INTERSPECIFIC HYBRIDS BRONNER, MUSCARIS AND MORAVA IN BANJA LUKA REGION

Abstract

Interspecific hybrids are increasingly finding their place in the assortment structure of modern viticulture, thanks to their notable resistance to diseases and adaptability to different climatic conditions. The aim of the research was to determine and compare the basic ampelographic and technological characteristics of the interspecific hybrids - Bronner, Muscaris and Morava with the conventional white wine variety Pinot Blanc, grown in the Banja Luka region (Bosnia and Herzegovina). The variety Muscaris stood out compared to the other analyzed varieties on the basis of the largest grape cluster weight (244.99 g), the weight of 100 grape berries (173.06 g), the weight of 100 grape skins (17.54 g) and the weight of seeds in100 grape berries (11.50 g). This variety also had the highest sugar content in grape juice (27.63 °Brix), followed by the Bronner variety (24.67 °Brix), which, according to the OIV categorization, ranks them among varieties with a very high sugar content. The Morava and Pinot Blanc varieties had a relatively similar sugar content (22.02 and 21.77 °Brix, respectively). The content of total polyphenols in the skins of Bronner variety grapes was statistically significantly higher (1876.73 mg/kg) compared to the other analyzed varieties, while a similar situation was observed in the seeds of the Pinot Blanc variety (2913.68 mg/kg). Based on the results, it was concluded that the variety Muscaris showed the best qualitative characteristics.