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Effect of Different Watering Regimes on Olive Oil Quality and Composition of Coratina Cultivar Olives Grown on Karst Soil in Croatia

Croatian islands are olive growing areas characterized by poor conditions for olive trees because of karst soil and a precipitation deficiency. Under these conditions, irrigation is a very important factor for constant olive oil production. This paper aims to investigate the effects of different wat...

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Autores principales: Brkić Bubola, Karolina, Kolega, Šimun, Marcelić, Šime, Šikić, Zoran, Gašparović Pinto, Ana, Zorica, Marko, Klisović, Dora, Novoselić, Anja, Jukić Špika, Maja, Kos, Tomislav
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9223069/
https://www.ncbi.nlm.nih.gov/pubmed/35741965
http://dx.doi.org/10.3390/foods11121767
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author Brkić Bubola, Karolina
Kolega, Šimun
Marcelić, Šime
Šikić, Zoran
Gašparović Pinto, Ana
Zorica, Marko
Klisović, Dora
Novoselić, Anja
Jukić Špika, Maja
Kos, Tomislav
author_facet Brkić Bubola, Karolina
Kolega, Šimun
Marcelić, Šime
Šikić, Zoran
Gašparović Pinto, Ana
Zorica, Marko
Klisović, Dora
Novoselić, Anja
Jukić Špika, Maja
Kos, Tomislav
author_sort Brkić Bubola, Karolina
collection PubMed
description Croatian islands are olive growing areas characterized by poor conditions for olive trees because of karst soil and a precipitation deficiency. Under these conditions, irrigation is a very important factor for constant olive oil production. This paper aims to investigate the effects of different watering regimes on quantity, sensory and chemical quality and composition of Coratina cv. olive oil obtained from trees grown on ameliorate karst soil during two harvesting years. Olive trees were subjected to rainfed conditions and three different irrigation treatments (T(1)—deficit irrigation representing the usual producer’s practice, T(2)—regulated deficit irrigation in respect to phenological stages, T(3)—full irrigation). Irrigation treatments increased oil yield compared to rainfed conditions (T(1) + 58%, T(2) + 66% and T(3) + 74%, representing average values for both studied years). All olive oil samples were of extra quality. Irrigation led to a decrease in carotenoids, volatiles, polyunsaturated fatty acids and linolenic acid contents, with no difference found among irrigation treatments. Total phenols and secoiridoids concentration was not affected by irrigation, indicating that similar oil quality could be achieved with less demand on the water supply. Obtained results could help producers to define a suitable irrigation management in particular conditions of ameliorate karst.
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spelling pubmed-92230692022-06-24 Effect of Different Watering Regimes on Olive Oil Quality and Composition of Coratina Cultivar Olives Grown on Karst Soil in Croatia Brkić Bubola, Karolina Kolega, Šimun Marcelić, Šime Šikić, Zoran Gašparović Pinto, Ana Zorica, Marko Klisović, Dora Novoselić, Anja Jukić Špika, Maja Kos, Tomislav Foods Article Croatian islands are olive growing areas characterized by poor conditions for olive trees because of karst soil and a precipitation deficiency. Under these conditions, irrigation is a very important factor for constant olive oil production. This paper aims to investigate the effects of different watering regimes on quantity, sensory and chemical quality and composition of Coratina cv. olive oil obtained from trees grown on ameliorate karst soil during two harvesting years. Olive trees were subjected to rainfed conditions and three different irrigation treatments (T(1)—deficit irrigation representing the usual producer’s practice, T(2)—regulated deficit irrigation in respect to phenological stages, T(3)—full irrigation). Irrigation treatments increased oil yield compared to rainfed conditions (T(1) + 58%, T(2) + 66% and T(3) + 74%, representing average values for both studied years). All olive oil samples were of extra quality. Irrigation led to a decrease in carotenoids, volatiles, polyunsaturated fatty acids and linolenic acid contents, with no difference found among irrigation treatments. Total phenols and secoiridoids concentration was not affected by irrigation, indicating that similar oil quality could be achieved with less demand on the water supply. Obtained results could help producers to define a suitable irrigation management in particular conditions of ameliorate karst. MDPI 2022-06-15 /pmc/articles/PMC9223069/ /pubmed/35741965 http://dx.doi.org/10.3390/foods11121767 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Brkić Bubola, Karolina
Kolega, Šimun
Marcelić, Šime
Šikić, Zoran
Gašparović Pinto, Ana
Zorica, Marko
Klisović, Dora
Novoselić, Anja
Jukić Špika, Maja
Kos, Tomislav
Effect of Different Watering Regimes on Olive Oil Quality and Composition of Coratina Cultivar Olives Grown on Karst Soil in Croatia
title Effect of Different Watering Regimes on Olive Oil Quality and Composition of Coratina Cultivar Olives Grown on Karst Soil in Croatia
title_full Effect of Different Watering Regimes on Olive Oil Quality and Composition of Coratina Cultivar Olives Grown on Karst Soil in Croatia
title_fullStr Effect of Different Watering Regimes on Olive Oil Quality and Composition of Coratina Cultivar Olives Grown on Karst Soil in Croatia
title_full_unstemmed Effect of Different Watering Regimes on Olive Oil Quality and Composition of Coratina Cultivar Olives Grown on Karst Soil in Croatia
title_short Effect of Different Watering Regimes on Olive Oil Quality and Composition of Coratina Cultivar Olives Grown on Karst Soil in Croatia
title_sort effect of different watering regimes on olive oil quality and composition of coratina cultivar olives grown on karst soil in croatia
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9223069/
https://www.ncbi.nlm.nih.gov/pubmed/35741965
http://dx.doi.org/10.3390/foods11121767
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