Amphelographic characteristics of Plovina (V. vinifera L.) clone candidates in experimental plantation “Baštica“ in 2010

Plavina je autohtona sorta vinove loze koja se uzgaja na području primorske Hrvatske. Od 2006. godine provodi se klonska selekcija sorte Plavina. U pokusni nasad “Baštica” 2007. posađeno je vegetativno potomstvo odabranih matičnih trseva s pozitivnim karakteristikama koji su ujedno pokazali odsutnost gospodarski štetnih virusa. Na njima se provela standardna ampelografska evaluacija koja obuhvaća utvrđivanje najvažnijih gospodarskih karakteristika te uvometrijska istraživanja. Provedena je i odgovarajuća statistička obrada podataka da bi se utvrdile značajnosti razlika među klonskim kandidatima. Utvrđeno je da među klonskim kandidatima postoje visoko signifikantne razlike u svim mjerenim svojstvima. Posebno je zanimljiv odnos šećera i kiselina. Određeni broj klonskih kandidata ima znatno viši sadržaj šećera i kiselina od ostalih. Podatak o prinosu po trsu pokazuje da većina klonskih kandidata ima relativno visok prinos za vinske sorte.Plavina is an autochthonous grapevine cultivar dominantly grown in Coastal Croatia region. A clone selection of Plavina cultivar has been conducted since 2006. Vegetative offspring of chosen mother vines with positive characteristics, which have also shown the lack of economically harmful viruses, was planted in the experimental plantation “Baštica”. They underwent a standard amphelographic evaluation which includes determining the most important economical characteristics and uvometric research. An adequate statistical data processing was carried out in order to determine the significance of differences between the clone candidates. It was determined that there are highly significant differences between clone candidates in all of the measured characteristics. The sugar – acid ratio is especially interesting. A certain number of clone candidates have significantly higher content of sugar and acids from the other ones. Data on yield per vine show that most clone candidates have a relatively high yield for wine varieties