Microclimate Condition Influence on the Physicochemical Properties and Antioxidant Activity of Pomegranate ( Punica granatum L.): A Case Study of the East Adriatic Coast

Mira Radunić (), Maja Jukić Špika (), Jelena Gadže, Smiljana Goreta Ban, Juan Carlos Díaz-Pérez and Dan MacLean
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Mira Radunić: Department of Plant Sciences, Institute for Adriatic Crops and Karst Reclamation, Put Duilova 11, 21000 Split, Croatia
Maja Jukić Špika: Centre of Excellence for Biodiversity and Molecular Plant Breeding, Svetošimunska 25, 10000 Zagreb, Croatia
Jelena Gadže: Department for Pomology, Division of Horticulture and Landscape Architecture, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia
Smiljana Goreta Ban: Centre of Excellence for Biodiversity and Molecular Plant Breeding, Svetošimunska 25, 10000 Zagreb, Croatia
Juan Carlos Díaz-Pérez: Department of Horticulture, University of Giorgia, 2360 Rainwater Road, Tifton, GA 31793, USA
Dan MacLean: AgroFresh, 510-530 Walnut Street, Suite 1350, Philadelphia, PA 19106, USA

Agriculture, 2025, vol. 15, issue 21, 1-17

Abstract: The pomegranate cultivar Barski slatki, the most widely cultivated on the Eastern Adriatic coast, was evaluated over one growing season across four growing areas to assess its pomological and chemical properties and antioxidant activity. Results showed that location significantly influenced fruit weight, volume, number of arils per fruit, and both total and individual aril weight, with the Kaštela (CRO) site producing the largest fruits and highest aril yields. Climatic factors, such as precipitation during bud differentiation, flowering, and early fruit development, were found to impact fruit set, aril number, and fruit size. Aril and juice yields, however, remained relatively stable across sites. Notable differences were observed in total soluble solids, titratable acidity, pH, total phenolic content, and anthocyanin profiles. Location with higher rainfall occurring during fruit growth favored enhanced phenolic accumulation. Although total anthocyanin content remained consistent among locations, significant variation occurred in aril coloration and composition of individual anthocyanins. In conclusion, microclimatic factors, particularly rainfall distribution, temperature, and altitude, play a decisive role in shaping the physical, chemical, and visual attributes of ‘Barski slatki’. Despite being cultivated under similar Mediterranean conditions, the observed differences across sites highlight the strong adaptability of this cultivar to diverse agroecological environments, while maintaining stable quality.

Keywords: pomegranate; meteorological factors; climate change; fruit size; anthocyanin; phenolics; antioxidant activity; super fruit; fruit quality (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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