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Kaolin foliar spray improves olive tree performance and yield under sustained deficit irrigation

2021Journal article Open access
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dc.contributor.authorBrito, Cátia
dc.contributor.authorGonçalves, Alexandre
dc.contributor.authorSilva, Ermelinda
dc.contributor.authorMartins, Sandra
dc.contributor.authorPinto, Luís
dc.contributor.authorRocha, Luís
dc.contributor.authorArrobas, Margarida
dc.contributor.authorRodrigues, M.A.
dc.contributor.authorMoutinho-Pereira, José
dc.contributor.authorCorreia, Carlos M.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2021-11-22T11:25:46Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2021-11-22T11:25:46Z
dc.date.issued2021
dc.description.abstractRegarding the foreseeing climate change is reasonable to expect harmful consequences to olive tree (Olea europaea L.), an iconic species of Mediterranean basin. In large areas of the Region, the sustained deficit irrigation (SDI) accounts with a reduced amount of water that might not be enough to keep the plant functioning at desirable levels. In this study the use of a reflective clay, kaolin, was evaluated in order to alleviate the negative summer stress effects on olive trees (cv. Cobrançosa) under an SDI system. Kaolin reduced the stomatal and the non-stomatal limitations to photosynthesis at high light intensity, improved plant water status, and decreased the oxidative damages. The amelioration of physiological and metabolic functions and the lower allocation of resources to summer stress tolerance mechanisms, allowed the KL-sprayed trees to increase crop yield, the oil yield and its oxidative stability, with the reduction of peroxide index and K232. Thus, the application of kaolin had a positive synergistic effect with SDI, especially important for semi-arid areas where water available for irrigation do not cover all the necessities.en_EN
dc.description.sponsorshipThis work was financed by project Interact: Integrative Research in Environment, Agro-Chain, and Technology, operation NORTE-01-0145- FEDER-000017, research line ISAC, co-funded by European Regional Development Fund (FEDER) through NORTE 2020 (Programa Operacional Regional do Norte 2014/2020), and supported by the project “Novas pr´aticas em olivais de sequeiro: estrat´egias de mitigaç˜ao e adaptaç˜ao `as alteraç˜oes clim´aticas”, PDR2020-101-032119, financed by the European Agricultural Fund for Rural Development (EAFRD) and the Portuguese State under Aç˜ao 1.1 “Grupos Operacionais”, integrada na Medida 1. “Inovaç˜ao” do PDR 2020: Programa de Desenvolvimento Rural do Continente. Institution. This work is supported by National Funds by FCT—Portuguese Foundation for Science and Technology, under the project UIDB/04033/2020. The authors are also grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support by national funds FCT/MCTES to CIMO (UIDB/00690/2020).
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationBrito, Cátia; Gonçalves, Alexandre; Silva, Ermelinda; Martins, Sandra; Pinto, Luís; Rocha, Luís; Arrobas, Margarida; Rodrigues, Manuel Ângelo; Moutinho-Pereira, José; Correia, Carlos M. (2021). Kaolin foliar spray improves olive tree performance and yield under sustained deficit irrigation. Scientia Horticulturae. ISSN 0304-4238. 277, p. 1-12en_EN
dc.identifier.doi10.1016/j.scienta.2020.109795en_EN
dc.identifier.issn0304-4238
dc.identifier.urihttp://hdl.handle.net/10198/24236
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.relationMountain Research Center
dc.subjectClimate change adaptation strategiesen_EN
dc.subjectCrop yielden_EN
dc.subjectOlea europaeaen_EN
dc.subjectOlive oilen_EN
dc.subjectParticle filmen_EN
dc.subjectPhotosynthesisen_EN
dc.titleKaolin foliar spray improves olive tree performance and yield under sustained deficit irrigationen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardTitleMountain Research Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04033%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameArrobas
person.familyNameRodrigues
person.givenNameMargarida
person.givenNameManuel Ângelo
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0002-4652-485X
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id8575728800
person.identifier.scopus-author-id35270106800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
relation.isAuthorOfPublicationd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication.latestForDiscoveryd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isProjectOfPublicationac4fb709-719a-450b-8c96-17592d46f5e9
relation.isProjectOfPublication29718e93-4989-42bb-bcbc-4daff3870b25
relation.isProjectOfPublication.latestForDiscoveryac4fb709-719a-450b-8c96-17592d46f5e9

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