Parametri kvaliteta genotipa vinove loze pod nazivom Jagoda iz Srbije

Abstract

U istraživanju sprovedenom u periodu 2020–2021. Godine ispitivanje genotipa vinove loze pod nazivom jagoda na lokaciji Donje Zleginje - Aleksandrovac, Srbija. Ovaj genotip vinove loze je registrovan 2018. godine u OIV bazu podataka, nije detalјnije proučavana. Na površini od 2 ha na lokaciji Donje Zleginje, praćeni su parametri kvaliteta sorte jagoda. Veličina grozda i dužina petelјke grozda proučavane su u vreme berbe grožđa 05.09.20., odnosno 04.09.21. Korišćena je srednja vrednost svih grozdova sa 10 lastara. Za tačnije određivanje veličine grozda merena je dužina i širina grozda bez petelјke, a dužina petelјke merena je do prvog grananja grozda. Morfološke osobine bobice utvrđene su vizuelno u vreme berbe grožđa na uzorku od 100 bobica uzetih sa 10 grozdova. U periodu berbe grožđa, merenjem mase grozdova utvrđen je prinos grožđa (kg) i broj grozdova po čokotu. Kvalitet grožđa utvrđen je pomoću sadržaja šećera (%) u širi odmah nakon berbe grožđa. Prosečna masa grozda bila je 227,9 g u prvoj godini a u drugoj 363,5 g. Prosečna dužina i širina grozda u prvoj godini bila je 14,2 x 12,9 cm, dok je u drugoj godini bila 18,8 x 14,45 cm. Prosečna dužina petelјke u prvoj godini bilaje 2,5 cm odnosno 3,1 cm. Prinos po čokotu bio je 3,24 kg, odnosno 4,10 kg. Prosečan broj grozdova po čokotu u prvoj godini bio je 20, odnosno u drugoj godini 19. Prosečan sadržaj šećera u prvoj godini bio je 17,50 %, a u drugoj godini 21,60 %. Ova proučavanja mogu da imaju značajnu ulogu u širenju genotipa Jagoda u Srbiji i veću primenu u proizvodnji belih vina. Takođe ova autohtona sorta može poslužiti kao izvor genetičkog materijala za stvaranje novih sorti.

In research conducted in the period 2020-2021. the genotype of the grapevine called ‘Jagoda’ at the location of Donje Zleginje, Aleksandrovac, Serbia was examined. This grapevine genotype was registered in 2018 in the OIV database, it has not been studied in detail. The quality parameters of the ‘Jagoda’ genotype were monitored on the area of 2 ha at the location of Donje Zleginje. The size of the bunch and the length of the petiole of the bunch were determined at the time of grape harvest 05.09.20., ie 04.09.21. The mean value of clusters with 10 shoots was used. To more accurately determine the size of the bunch, the length and width of the bunch without the petiole were measured, and the length of the petiole was measured until the first branch of the bunch. All morphological characteristics of the berry were determined visually at the time of grape harvest on a sample of 100 berries taken from 10 bunches. In the period of grape harvest, by measuring the mass of all grapes, the yield of grapes (kg) and the number of grapes per grapevine were determined. The quality of grapes was determined through the content of sugar (%) in the must immediately after grape harvest. The average weight of the bunch was 227,9 g in the first year and 363,5 g in the second year. The average length and width of the cluster in the first year was 14,2 x 12,9 cm, while in the second year it was 18,8 x 14,45 cm. The average length of the petiole in the first year was 2,5 cm and 3,1 cm, respectively. The yield per grapevine was 3,24 kg and 4,10 kg, respectively. The average number of bunches per grapevine in the first year was 20, and in the second year 19. The average content of sugar in the first year was 17,50%, and in the second year 21, 60%. These studies can play a significant role in the spread of the ‘Jagoda’ genotype in Serbia and greater application in the production of white wines. Also, this indigenous genotype can serve as a source of genetic material for the creation of new genotypes.