Analysis of the content of aromatic compounds in grape of native cultivars clone candidates

Klonska selekcija autohtonih sorata vinove loze provodi se u Hrvatskoj tijekom posljednjih 15-ak godina. Ovim istraživanjem proširena je evaluacija odabranih klonskih kandidata bijelih sorata u selekciji s ciljem dobivanja detaljnijeg uvida u sadržaj aromatskih spojeva u grožđu. Osim sadržaja aromatskih spojeva želi se utvrditi razlike u ostalim gospodarskim svojstvima kao što su: sadržaj šećera u moštu, titracijska kiselost te pH vrijednost mošta. u grožđu između klonskih kandidata sorti: ‘Moslavac’, ‘Kraljevina’, ‘Žlahtina’, ‘Vugava’, ‘Debit’, ‘Maraština’, ‘Pošip’ i ‘Grk’. Utvrđene su značajne razlike u sadržaju aromatskih spojeva između klonskih kandidata svih sorata na temelju analize pomoću plinske kromatografije (GC-MS). Temeljem dobivenih rezultata možemo zaključiti kako su klonskom selekcijom autohtonih sorata izdvojeni divergentni klonovi koji se značajno razlikuju u sadržaju i sastavu primarnih spojeva aroma u grožđu.Clonal selection of native grapevine varieties has been implemented in Croatia during the last 15 years. By conducting this research the evaluation of selected clone candidates of white cultivars has been expanded with a goal to acquire detailed insight into the content of aromatic compounds in grapes. In addition to this, the aim of this research is to establish the differences among other economic characteristics such as sugar content in must, titrable acidity and the pH value of must in clone candidates varieties of grape: 'Moslavac', ‘Kraljevina’, ‘Žlahtina’, ‘Vugava’, ‘Debit’, ‘Maraština’, ‘Pošip’ and ‘Grk’. Based on the analysis of gas chromatography (GC-MS) differences in the content of aromatic compounds among the clone candidate varieties were confirmed. Based on the results of the research it is safe to conclude that by clonal selection of native varieties divergent clones are separated and they greatly differ in content and composition of primary aromatic compounds in grapes