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Although around the globe numerous studies have been conducted on the nutritional composition of blueberry/bilberry and its effect on human health, very little is known about the fruit in Bosnia and Herzegovina. This is the first report regarding the physical and chemical characteristics of the cultivated highbush blueberry and bilberry harvested in the same climatic conditions in Bosnia and Herzegovina. In this paper we present the physical (weight) and chemical (soluble solids content, total sugars, titratable acidity, pH, and total phenols) properties of the wild bilberry (Vaccinium myrtillus L.) and cultivated highbush-'Earliblue' , 'Bluegold' , 'Bluecrop' , 'Goldtraube'-blueberry (Vaccinium corymbosum L.). Among the highbush blueberry cultivars, 'Bluegold' (2.07-2.11 g) and 'Bluecrop' (2.08-2.11 g) had the highest weight. 'Bluecrop' had the highest soluble solids content (13.3-13.7 °Brix) and total sugars (9.73%-9.94%), but the lowest content of titratable acidity (0.70-0.72 g/100 g), which was highest in 'Goldtraube' (0.92-0.93 g/100 g). This cultivar also had the highest content of total phenols (289-309 mg gallic acid equivalent/100 g of fresh weight). In the case of wild bilberry, the following values were obtained: average weight 0.28-0.32 g, soluble solids content 11.1-11.3 °Brix, total sugars 7.23%-7.37%, titratable acidity 0.99%-1.02%, and total phenols 431-455 mg/100 g. Blueberry and wild bilberry also had a fairly uniform pH (3.2-3.6). All samples had a valuable composition and so it is advisory to expand their production in Bosnia and Herzegovina in order to increase their consumption.

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Sažetak: U radu je ispitivan uticaj tri vegetativne podloge (Pixy, Fereley i St. Julien A) i sejanaca džanarike (kontrola) na rast, rodnost i kvalitet ploda sorte šljive Čačanska rana. Istraživanje je obavljeno na području beogradskog Podunavlja u periodu od šest godina (2013-2018). U odnosu na kontrolu, sve tri vegetativne podloge su ispoljile značajan uticaj na smanjenje bujnosti izražene preko površine poprečnog preseka debla. Najmanja bujnost je bila kod stabala na podlozi Pixy, zatim Fereley i St. Julien A. Na podlogama Fereley i St. Julien A dobijeno je značajno veće zametanje plodova, kao i prinos po stablu u odnosu na kontrolu. Na vegetativnim podlogama prinos po hektaru bio je veći za 72% do 93% u odnosu na džanariku. Najveći koeficijent rodnosti imala su stabla na podlozi Fereley, a za njom slede Pixy i St. Julien A. Značajno veća masa ploda u odnosu na kontrolu dobijena je kod stabala na podlozi Fereley. Podloge nisu ispoljile značajan uticaj na sadržaj rastvorljive suve materije i ukupnih kiselina u plodu. Na osnovu dobijenih rezultata, može se zaključiti da su sve tri vegetativne podloge dale bolje rezultate u odnosu na džanariku i mogu se preporučiti za podizanje intenzivnih zasada šljive sa većom gustinom sadnje. Najbolji rezultati u pogledu rodnosti i kvaliteta ploda dobijeni su kod podloge Fereley. Ključne reči: Prunus domestica, vegetativne podloge, bujnost, prinos, kvalitet ploda. Uvod Evropska šljiva (Prunus domestica L.) je po proizvodnji na prvom mestu među voćkama u Srbiji. Iako je ukupna godišnja proizvodnja velika (prosečno 437.008 t za period 2013-2017. godine), prosečan prinos po jedinici površine je relativno mali-5,86 t/ha (Republički zavod za statistiku Srbije, 2018). Osnovni

The influence of three clonal rootstocks (‘Pixyʼ, ‘Fereleyʼ and ‘St. Julien Aʼ) along with seedlings of Myrobalan(control) on growth, yield and fruit quality of plum cultivars ‘Čačanska Najboljaʼ and ‘Čačanska Lepoticaʼ was studied in the Belgrade region (Serbia) for the six year-period (2013–2018). In comparison to control, clonal rootstocks have shown a significant effect on the decrease of trunk cross-sectional area. The lowest vigor was found in trees on the ‘Pixyʼ rootstock, then on ‘Fereleyʼ and ‘St. Julien Aʼ. Yield per hectare on trees grafted on clonal rootstocks was higher for 62–82% in ‘Čačanska Najboljaʼ, and for 26–27% in ‘Čačanska Lepoticaʼ compared to Myrobalan. In cultivar ‘Čačanska Najboljaʼ significantly higher fruit weight compared to control was obtained in the trees on the ‘Fereleyʼ and ‘St. Julien Aʼ rootstocks. The effects of rootstocks on the contents of soluble solids and total acids in the fruit were not significant. All three studied clonal rootstocks showed better results than standard Myrobalan, and can be recommended for establishing intensive plum plantations with higher planting density.

SažetakCilj rada je bio da se u trogodišnjem periodu ispita uticaj temperature vazduha i padavina na prinos i da se utvrde razlike između proučavanih sorti. Značajnija kolebanja u vrijednostima srednjih dnevnih temperatura vazduha u trogodišnjem periodu uticala su značajno na rodnost, što se manifestovalo u ispoljenim razlikama u prinosu između proučavanih sorti. Razlike u prinosu su konstatovane i u okviru ispitivanih godina. Rezultati istraživanja potvrdili su da je uticaj faktora sorte, godine, kao i njihove interakcije na proučavano obilježje bio statistički visoko značajan.

The physical properties of three sweet cherry cultivars grafted on Gisela 6 rootstock were studied in agroecological conditions of Blagaj, Herzegovina (southern part of Bosnia and Herzegovina), during a period of two years (2020‒2021). The research included fruit and stone weight, flesh ratio, stalk length, fruit dimensions and fruit shape index) of Early Lory, Regina and Kordia cultivars. The fruits of the cultivar Kordia had the highest fruit and stone weight, flesh ratio, stalk length, fruit width as well as fruit shape index. The cultivar Early Lory had the highest fruit width and thickness. Based on the results, the cultivar Kordia showed the best results of physical properties of the fruit compared to the cultivar Early Lory and Regina.