Evaluation of economic potential of indigenous grape varieties from Hrvatsko Zagorje

Istraživanjem autohtonih sorata vinove loze Hrvatskog zagorja, pronađene su stare, gotovo nestale sorte. O njima postoji malo literaturnih zapisa, naročito o gospodarskim karakteristikama. Matičnjak u Komoru Začretskom omogućuje njihovu evaluaciju. U matičnjaku je zasađeno 14 sorata: 'Belina starohrvatska', 'Belina smudna', 'Sokol', 'Volovina crvena', 'Belina šemnička', 'Belina pikasta', 'Modra kosovina', 'Mirkovača', 'Belina mala', 'Kozjak', 'Belina hižakovečka', 'Belina svetokriška', 'Dišeća ranina' te 'Graševina'. Rad obuhvaća istraživanje fenoloških svojstava, generativnog potencijala i parametara kakvoće. Možemo zaključiti da se za većinu sorata, rezultati poklapaju s postojećim literaturnim navodima, uz neke iznimke. Sorte su, prema fenologiji, usporedive s 'Graševinom' dok u prosjeku imaju niže koeficijente rodnosti, veću prosječnu masu grozda, niži ili približan sadržaj šećera u moštu i višu ukupnu kiselost od 'Graševine'.By researching indigenous grape varieties of Hrvatsko Zagorje some old, almost extinct varieties were found. There are mentioned only a few times in previous research and there is little to no record about their economic characteristics. The experimental vineyard in Komor Začretski enables their evaluation. 14 varieties were planted in that vineyard: 'Belina starohrvatska', 'Belina smudna', 'Sokol', 'Volovina crvena', 'Belina šemnička', 'Belina pikasta', 'Modra kosovina', 'Mirkovača', 'Belina mala', 'Kozjak', 'Belina hižakovečka', 'Belina svetokriška', 'Dišeća ranina' and 'Graševina'. The paper includes research of phenological properties, generative potential, and quality parameters of these indigenous grape varieties. We can conclude that for most cultivars, the results coincide with the existing literature citations but there were some exceptions. These indigenous varieties are, according to phenology, comparable to 'Graševina' while on average they have lower yield coefficients, higher average grape weight, lower to moderate sugar and higher total acid content than ‘Graševina’