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Fruit yield and quality of olives under different deficit irrigation strategies

2018Conference object Open access
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dc.contributor.authorGonçalves, Alexandre
dc.contributor.authorMartins, Sandra
dc.contributor.authorSilva, Ermelinda
dc.contributor.authorBrito, Cátia
dc.contributor.authorPinto, Luís
dc.contributor.authorRocha, Luís
dc.contributor.authorPavia, Ivo
dc.contributor.authorLuzio, Ana
dc.contributor.authorNunes, Fernando M.
dc.contributor.authorRodrigues, M.A.
dc.contributor.authorMoutinho-Pereira, José
dc.contributor.authorCorreia, Carlos M.
dc.date.accessioned2019-02-01T10:59:09Z
dc.date.available2019-02-01T10:59:09Z
dc.date.issued2018
dc.description.abstractThe Mediterranean Basin is a climate change hot spot where substantial warming and lower water availability is predicted. This scenario poses considerable challenges to olive groves, a crop with great ecological and socioeconomic importance. ln order to overcome these constrains, new cropping practices focusing on water use efficiency must be investigated. ln this work we aimed to investigate water management practices that can ensure the adequate compromise between yield and the quality of olive products. The study was conducted in Quinta do Prado, Lodões, Vila Flor (41 °20'13.3"N, 7°05'54.2"W) and a full irrigation (FI) control, applied daily, equivalent to 100% of crop evapotranspiration (ETc), was compared with three deficit irrigation strategies (DIS): regulated deficit irrigation (RDI; 80% of ETc in phases I and III of fruit growth and 10% of ETc in pit hardening stage, phase TI; 56 % of the ETc in all season), sustained deficit irrigation (SDI; 27.5% of ETc), and sustained deficit irrigation adopted by the farmer (SDIAF; 21.2% of ETc, applied weekly). The impact of treatments on fruit yield and quality during 2016 were evaluated. Using FI treatment as reference, no significant influence of RDI and SDI treatments were felt in crop yield, while the SDlAF treatment reduced it significantly (P<O.Ol ). Fruit quality analysis showed that the SDI treatment Ied to higher antioxidant activity than in FI and SDIAF treatments. However, the SDIAF strategy led to higher accumulation of both total phenols and flavonoids (P<O.Ol ). The fruit fat content was significantly higher in deficit irrigation treatments, when compared to the FI treatment. lrrigation treatments also induced changes in fruit fatty acids profile (P<O.OOl) since palmitoleic acid (C16:1) decreased in the deficit irrigation treatments, linoleic acid (Cl8:2) decreased in the SDIAF treatment, and linolenic acid (C18:3) decreased in RDI and SDI treatments. Except for SDIAF, despite the great disparity in the amount of water used among treatments, there were no significant differences in fruit production. Hence, with an increase of 30% in water consumption, changing from the SDlAF to the SDl treatment, this particular farmer can increase the orchard production, without losing fruit fat content and antioxidant capacity. This work gives new insights about the effect of DlS when used in olive orchards and might help to illustrate the sustainability of these management practices.pt_PT
dc.description.sponsorshipTo Anabela Fernandes-Silva for the calculation of ETc. This work was funded by the INTERACT project- "Integrati ve Research in Environment, Agm·Chaius and Technology", no. NORTE-01-0 145 -FEDER-000017, in its lines of research entitled TS AC, co-financied by the European Regional Devdopment Fund (ERDF) through NORTE 2020 (North Regional Operational Program 201412020). SM (PD/BD/135327/2017), EM (PD/BD/128274/2017), CB (PD/BD/52543/2014), LR (PD/BD/113612/2015) and lP (PD/BD/113611/2015) acknowledge the financial support provided by the FCT-Portut,'Uese Fow1dation for Scienco and Technology, underthe Doctoral Programm Agricultural Production Chains- from fork to farm" (PD/00122/2012)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGonçalves, Alexandre; Martins, Sandra; Silva, Ermelinda; Brito, Cátia; Pinto, Luís; Rocha, Luís; Pavia, Ivo; Luzio, Ana; Nunes, Fernando; Rodrigues, M.A.; Moutinho-Pereira, José; Correia, Carlos (2018). Fruit yield and quality of olives under different deficit irrigation strategies. In II Simpósio Internacional de Águas, Solos e Geotecnologias (SASGEO). Vila Realpt_PT
dc.identifier.urihttp://hdl.handle.net/10198/18618
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationSoil management strategies to ameliorate olive tree performane and olive oil quality under adverse conditions -Implementation of innovative agricultural practices to promote the performance of olive trees under adverse climate conditions
dc.relationMitigation measures to improve physiology and productivity of olive trees under abiotic stresses
dc.relationEFEITO DA APLICAÇÃO DE CAULINO E ACIDO SALICILICO NA MITIGAÇÃO DO STRESS ESTIUAL EM OLIVEIRA
dc.relationSELENIUM BIOFORTIFICATION, EFFECTS IN REGULATION, PHYSIOLOGICAL AND MOLECULAR FUNCTIONS IN PORTUGUESE TRITICUM AESTIVUM CULTIVARS GROWN ON ACID SOILS UNDER WATER-STRESS CONDITIONS
dc.relationAGRONOMIC BIOFORTIFICATION OF WHEAT WITH MICRONUTRIENTS FOR HIGHER YEILD, NUTRITIONAL VALUE AND PLANT STRESS RESISTANCE
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectIrrigationpt_PT
dc.subjectOlive treept_PT
dc.subjectFruit yieldpt_PT
dc.subjectFruit qualitypt_PT
dc.titleFruit yield and quality of olives under different deficit irrigation strategiespt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleSoil management strategies to ameliorate olive tree performane and olive oil quality under adverse conditions -Implementation of innovative agricultural practices to promote the performance of olive trees under adverse climate conditions
oaire.awardTitleMitigation measures to improve physiology and productivity of olive trees under abiotic stresses
oaire.awardTitleEFEITO DA APLICAÇÃO DE CAULINO E ACIDO SALICILICO NA MITIGAÇÃO DO STRESS ESTIUAL EM OLIVEIRA
oaire.awardTitleSELENIUM BIOFORTIFICATION, EFFECTS IN REGULATION, PHYSIOLOGICAL AND MOLECULAR FUNCTIONS IN PORTUGUESE TRITICUM AESTIVUM CULTIVARS GROWN ON ACID SOILS UNDER WATER-STRESS CONDITIONS
oaire.awardTitleAGRONOMIC BIOFORTIFICATION OF WHEAT WITH MICRONUTRIENTS FOR HIGHER YEILD, NUTRITIONAL VALUE AND PLANT STRESS RESISTANCE
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/PD%2FBD%2F135327%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PD%2FBD%2F128274%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PD%2FBD%2F52543%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PD%2FBD%2F113612%2F2015/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/PD%2FBD%2F113611%2F2015/PT
oaire.citation.conferencePlaceVila Realpt_PT
oaire.citation.endPage41pt_PT
oaire.citation.startPage41pt_PT
oaire.citation.titleII Simpósio Internacional de Águas, Solos e Geotecnologias (SASGEO)pt_PT
oaire.fundingStreamPOR_NORTE
oaire.fundingStreamFARH
person.familyNameRodrigues
person.givenNameManuel
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id35270106800
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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