Ampelographic characteristics of clone candidates of variety Grk (V. vinifera, L.) in year 2010

Grk je autohtona sorta vinove loze sa ženskim cvijetom koja se uzgaja na području primorske Hrvatske. Od 2006. godine provodi se klonska selekcija sorte Grk. U pokusni nasad “Baštica” 2007. posađeno je vegetativno potomstvo odabranih matičnih trseva s pozitivnim karakteristikama koji su ujedno pokazali odsutnost gospodarski štetnih virusa. Utvrđeno je kako između klonskih kandidata postoje visoko signifikantne razlike u svim mjerenim svojstvima. Također je utvrđeno da udio neoplođenih bobica tj. pasolina ima utjecaj na uvometrijske karakteristike, te kemijska svojstva mošta. Provedena je i odgovarajuća statistička obrada podataka s ciljem utvrđivanja značajnosti razlika između klonskih kandidata na sva mjerena svojstva.Grk is an autochthonous grapevine cultivar dominantly grown in Costal Croatia region. A clonal selection of Grk cultivar has been conducted since 2006. Vegetative offsprings of chosen mother vines with positive characteristics, which have also shown the lack of economically harmful viruses, were planted in the experimental plantation “Baštica“. Significant differences between clonal candidates were determined in all characteristics evaluated. It is also determined that proportion of seedless berries has an impact on must chemical composition and some uvometric characteristics. A matching statistical data processing was conducted with the goal of determining the significance of differences between clone candidates to all measured characteristics