Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/20104 |
Resumo: | To overcome constrains affecting olive groves, cropping practices focusing on agronomic water use efficiency and their impact on quality parameters must be investigated. We evaluated the response of olive trees (Olea europaea, cv. Cobrançosa) to different water regimes, full irrigation (FI, 100% ETc) and three deficit irrigation strategies (DIS) (regulated (RDI, irrigated with 80% of crop evapotranspiration (ETc) in phases I and III of fruit growth and 10% of ETc in the pit hardening stage) and two continuous sustained strategies (SDI), a conventional SDI (27.5% of ETc), and a lowfrequency irrigation adopted by the farmer (SDIAF, 21.2% of ETc). RESULTS The effects of water regimes on the plant water status, photosynthetic performance, metabolites fluctuations and fruit quality parameters were evaluated. All DIS treatments enhanced leaf tissue density, RDI and SDI generally did not affect leaf water status and maintained photosynthetic machinery working properly, while SDIAF treatment impaired olive tree physiological indicators. DIS treatments maintained the levels of primary metabolites in leaves, but SDIAF plants showed signs of oxidative stress. Moreover, DIS treatments led to changes in the secondary metabolism, both in leaves and in fruits, with increased total phenolic compounds, ortho-diphenols, and flavonoids concentrations, and higher total antioxidant capacity, as well higher oil content. Phenolic profiles showed the relevance of an early harvest in order to obtain higher oleuropein levels with associated higher health benefits. CONCLUSION Adequate DIS are essential for sustainable olive growing, as they enhance the competitiveness of the sector in terms of olive production and associated quality parameters. |
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Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategiesEcophysiologyFruit physicochemical propertiesIrrigation regimeOlea europaeaWater use efficiencyTo overcome constrains affecting olive groves, cropping practices focusing on agronomic water use efficiency and their impact on quality parameters must be investigated. We evaluated the response of olive trees (Olea europaea, cv. Cobrançosa) to different water regimes, full irrigation (FI, 100% ETc) and three deficit irrigation strategies (DIS) (regulated (RDI, irrigated with 80% of crop evapotranspiration (ETc) in phases I and III of fruit growth and 10% of ETc in the pit hardening stage) and two continuous sustained strategies (SDI), a conventional SDI (27.5% of ETc), and a lowfrequency irrigation adopted by the farmer (SDIAF, 21.2% of ETc). RESULTS The effects of water regimes on the plant water status, photosynthetic performance, metabolites fluctuations and fruit quality parameters were evaluated. All DIS treatments enhanced leaf tissue density, RDI and SDI generally did not affect leaf water status and maintained photosynthetic machinery working properly, while SDIAF treatment impaired olive tree physiological indicators. DIS treatments maintained the levels of primary metabolites in leaves, but SDIAF plants showed signs of oxidative stress. Moreover, DIS treatments led to changes in the secondary metabolism, both in leaves and in fruits, with increased total phenolic compounds, ortho-diphenols, and flavonoids concentrations, and higher total antioxidant capacity, as well higher oil content. Phenolic profiles showed the relevance of an early harvest in order to obtain higher oleuropein levels with associated higher health benefits. CONCLUSION Adequate DIS are essential for sustainable olive growing, as they enhance the competitiveness of the sector in terms of olive production and associated quality parameters.Biblioteca Digital do IPBGonçalves, AlexandreSilva, ErmelindaBrito, CátiaMartins, SandraPinto, LuísDinis, Lia TâniaLuzio, AnaMartins-Gomes, CarlosFernandes-Silva, AnabelaRibeiro, CarlosRodrigues, M.A.Moutinho-Pereira, JoséNunes, Fernando M.Correia, Carlos M.2018-01-19T10:00:00Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/20104engGonçalves, Alexandre; Silva, Ermelinda; Brito, Cátia; Martins, Sandra; Pinto, Luís; Dinis, Lia Tânia; Luzio, Ana; Martins-Gomes, Carlos; Fernandes-Silva, Anabela; Ribeiro, Carlos; Rodrigues, M. Ângelo; Moutinho-Pereira, José; Nunes, Fernando M.; Correia, Carlos M. (2019). Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies. Journal of the Science of Food and Agriculture. ISSN 0022-5142. p. 682–6940022-514210.1002/jsfa.10064info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T10:45:56Zoai:bibliotecadigital.ipb.pt:10198/20104Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:10:53.819900Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies |
title |
Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies |
spellingShingle |
Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies Gonçalves, Alexandre Ecophysiology Fruit physicochemical properties Irrigation regime Olea europaea Water use efficiency |
title_short |
Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies |
title_full |
Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies |
title_fullStr |
Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies |
title_full_unstemmed |
Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies |
title_sort |
Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies |
author |
Gonçalves, Alexandre |
author_facet |
Gonçalves, Alexandre Silva, Ermelinda Brito, Cátia Martins, Sandra Pinto, Luís Dinis, Lia Tânia Luzio, Ana Martins-Gomes, Carlos Fernandes-Silva, Anabela Ribeiro, Carlos Rodrigues, M.A. Moutinho-Pereira, José Nunes, Fernando M. Correia, Carlos M. |
author_role |
author |
author2 |
Silva, Ermelinda Brito, Cátia Martins, Sandra Pinto, Luís Dinis, Lia Tânia Luzio, Ana Martins-Gomes, Carlos Fernandes-Silva, Anabela Ribeiro, Carlos Rodrigues, M.A. Moutinho-Pereira, José Nunes, Fernando M. Correia, Carlos M. |
author2_role |
author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Gonçalves, Alexandre Silva, Ermelinda Brito, Cátia Martins, Sandra Pinto, Luís Dinis, Lia Tânia Luzio, Ana Martins-Gomes, Carlos Fernandes-Silva, Anabela Ribeiro, Carlos Rodrigues, M.A. Moutinho-Pereira, José Nunes, Fernando M. Correia, Carlos M. |
dc.subject.por.fl_str_mv |
Ecophysiology Fruit physicochemical properties Irrigation regime Olea europaea Water use efficiency |
topic |
Ecophysiology Fruit physicochemical properties Irrigation regime Olea europaea Water use efficiency |
description |
To overcome constrains affecting olive groves, cropping practices focusing on agronomic water use efficiency and their impact on quality parameters must be investigated. We evaluated the response of olive trees (Olea europaea, cv. Cobrançosa) to different water regimes, full irrigation (FI, 100% ETc) and three deficit irrigation strategies (DIS) (regulated (RDI, irrigated with 80% of crop evapotranspiration (ETc) in phases I and III of fruit growth and 10% of ETc in the pit hardening stage) and two continuous sustained strategies (SDI), a conventional SDI (27.5% of ETc), and a lowfrequency irrigation adopted by the farmer (SDIAF, 21.2% of ETc). RESULTS The effects of water regimes on the plant water status, photosynthetic performance, metabolites fluctuations and fruit quality parameters were evaluated. All DIS treatments enhanced leaf tissue density, RDI and SDI generally did not affect leaf water status and maintained photosynthetic machinery working properly, while SDIAF treatment impaired olive tree physiological indicators. DIS treatments maintained the levels of primary metabolites in leaves, but SDIAF plants showed signs of oxidative stress. Moreover, DIS treatments led to changes in the secondary metabolism, both in leaves and in fruits, with increased total phenolic compounds, ortho-diphenols, and flavonoids concentrations, and higher total antioxidant capacity, as well higher oil content. Phenolic profiles showed the relevance of an early harvest in order to obtain higher oleuropein levels with associated higher health benefits. CONCLUSION Adequate DIS are essential for sustainable olive growing, as they enhance the competitiveness of the sector in terms of olive production and associated quality parameters. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-19T10:00:00Z 2019 2019-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10198/20104 |
url |
http://hdl.handle.net/10198/20104 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Gonçalves, Alexandre; Silva, Ermelinda; Brito, Cátia; Martins, Sandra; Pinto, Luís; Dinis, Lia Tânia; Luzio, Ana; Martins-Gomes, Carlos; Fernandes-Silva, Anabela; Ribeiro, Carlos; Rodrigues, M. Ângelo; Moutinho-Pereira, José; Nunes, Fernando M.; Correia, Carlos M. (2019). Olive tree physiology and chemical composition of fruits are modulated by different deficit irrigation strategies. Journal of the Science of Food and Agriculture. ISSN 0022-5142. p. 682–694 0022-5142 10.1002/jsfa.10064 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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