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Use of leguminous cover crops as a sustainable strategy on rainfed olive orchards: effects on physiology, yield and fruit composition

2021Conference object Open access
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dc.contributor.authorMartins, Sandra
dc.contributor.authorGonçalves, Alexandre
dc.contributor.authorSilva, Ermelinda
dc.contributor.authorBrito, Cátia
dc.contributor.authorRodrigues, M.A.
dc.contributor.authorNunes, Fernando M.
dc.contributor.authorCorreia, Carlos M.
dc.date.accessioned2023-02-16T09:55:27Z
dc.date.available2023-02-16T09:55:27Z
dc.date.issued2021
dc.description.abstractOlive tree is one of the most important crops in the Mediterranean basin with a huge social and economic impact. Considering the predicted scenarios of climate change, there is a growing need for the adaptation of agronomic practices, in order to mitigate the negative effects of those changes on plant physiology, yield, and olive fruit and oil quality. However, in Portuguese rainfed orchards the most frequently used soil management practice is the conventional tillage, which significantly contributes to the decline of soil health and fertility, with serious consequences to plants and environment. In this way, cover cropping has emerged as a sustainable practice of soil management, able to provide numerous ecosystem services, which contribute to crop productivity and quality. The objective of this study was to compare the effects of a cover crop of self-reseeding annual legumes of short growing cycle (LC) with the conventional tillage (T) on physiology, yield and fruit composition of twenty-seven-year-old olive trees (Olea europaea L. cv. Cobrançosa) grown under rainfed conditions. The experiment was carried out during 2018 and 2019 in Trás-os-Montes region, northeast of Portugal. The physiological performance was significantly improved on LC plants, considering the rise of net photosynthesis, transpiration rate and stomatal conductance. Moreover, LC trees registered consistently higher yields, accompanied by a significant increase on fruit weight, length and maturation index. Regarding fruit biochemistry, results were more evident on the first year, showing a decrease of total phenols, ortho-diphenols and total antioxidant activity of LC fruits, probably associated with their higher ripening state. The fruit fatty acid profile obtained on a Trace GC-FID (gas chromatograph with flame ionized detector), showed that in 2018 LC fruits presented higher concentration of oleic acid (C18:1) and a lower content of palmitic (C16:0) and linoleic acids (C18:2). These results give evidence that leguminous cover crops provided several benefits comparing with the conventional tillage technique. Therefore, this is a very promising strategy of sustainable soil management to implement in olive orchards under drought conditionspt_PT
dc.description.sponsorshipThis work was financed by Doctoral fellowship under the Doctoral Program “Agricultural Production Chains – from fork to farm” (PD/00122/2012) provided by the FCT-Portuguese Foundation for Science and Technology to S. Martins (PD/BD/135327/2017), and project “Novas práticas em olivais de sequeiro: estratégias de mitigação e adaptação às alterações climáticas”, PDR2020-101-032119, financed by the European Agricultural Fund for Rural Development (EAFRD) and the Portuguese State under Ação 1.1 “Grupos Operacionais”, integrada na Medida 1. “Inovação” do PDR 2020: Programa de Desenvolvimento Rural do Continente.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMartins, Sandra; Gonçalves, Alexandre; Silva, Ermelinda; Brito, Cátia; Rodrigues, M.A.; Nunes, Fernando; Correia, Carlos Manuel (2021). Use of leguminous cover crops as a sustainable strategy on rainfed olive orchards: effects on physiology, yield and fruit composition. In Adela Sánchez Moreira; Manuel J. Reigosa Roger; Rogelio Santiago Carabelos (Eds.) XXIV Meeting of the Spanish Society of Plant Biology. Onlinept_PT
dc.identifier.isbn978-84-124005-2-6
dc.identifier.urihttp://hdl.handle.net/10198/26977
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpanish Society of Plant Biologypt_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.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectClimate changept_PT
dc.subjectConventional tillagept_PT
dc.subjectLeguminous cover cropspt_PT
dc.subjectOlive treept_PT
dc.subjectSustainable soil managementpt_PT
dc.subjectResearch Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Soil sciencept_PT
dc.titleUse of leguminous cover crops as a sustainable strategy on rainfed olive orchards: effects on physiology, yield and fruit compositionpt_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.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/PD%2FBD%2F135327%2F2017/PT
oaire.citation.conferencePlaceOnlinept_PT
oaire.citation.endPage30pt_PT
oaire.citation.startPage29pt_PT
oaire.citation.titleXXIV Meeting of the Spanish Society of Plant Biologypt_PT
oaire.fundingStreamPOR_NORTE
person.familyNameRodrigues
person.givenNameManuel Ângelo
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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication.latestForDiscovery43621353-fa11-4559-9b24-27eba5ad3de0
relation.isProjectOfPublicatione23c9496-2236-4742-95ee-e4324bcb22f7
relation.isProjectOfPublication.latestForDiscoverye23c9496-2236-4742-95ee-e4324bcb22f7

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