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Assessing water requirements of pitaya (S. undatus) under greenhouse conditions: a first step towards optimizing irrigation

2026-04Artigo científico Acesso restrito
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datacite.subject.sdg02:Erradicar a Fome
datacite.subject.sdg06:Água Potável e Saneamento
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorTrindade, Ana Rita
dc.contributor.authorEller, Elda
dc.contributor.authorArozarena, A.
dc.contributor.authorNeves, Maria Alcinda
dc.contributor.authorDuarte, Amilcar
dc.date.accessioned2026-05-15T09:37:02Z
dc.date.available2026-05-15T09:37:02Z
dc.date.issued2026-04en_US
dc.date.updated2026-05-15T09:13:19Z
dc.description.abstractThe Algarve region provides ideal edaphoclimatic conditions for cultivating subtropical and some tropical fruit species. Pitaya (Selenicereus spp.) is also aligned with Algarve’s goal of revitalizing fruit production through species that require less water. Recently introduced into commercial farming in Portugal, the expansion of this crop lacks more detailed information about its specific cultivation requirements. Although native to the humid forests of Central America, with consistent water availability, pitaya can also survive and produce in drier climates such as the Mediterranean. Nonetheless, to achieve good yields and high-quality fruit, adequate irrigation is essential. Understanding pitaya’s water needs can be challenging due to its natural water-conserving mechanisms, such as CAM (crassulacean acid metabolism) and water-storing cladodes. This study aims to clarify these needs firstly by determining the daily water consumption (DWC). At the University of Algarve, a greenhouse experiment monitors the DWC of 36 plants (S. undatus) in 4-L pots, enabling precise measurement of water consumption, with and without vegetative growth. During the summer, DWC ranged between 0.02 and 0.08 L day-1, influenced by the excessively high temperatures and the low humidity. These conditions significantly increased substrate evaporation rates. The results also suggest that pitaya growth showed no correlation with DWC. Since the summer trial confirmed the negative impact of excessively high temperatures, the same experiment was conducted in the autumnwinter season, when the plants grew in more favourable conditions. Pitaya’s exceptional water efficiency, evidenced by low summer DWC, makes it ideal for waterscarce regions. Substrate or soil covering, can further enhance water use efficiency, reinforcing its potential as a sustainable and economically viable crop. Preliminary results on the DWC of these plants indicate that pitaya’s evapotranspiration seems significantly lower compared to other irrigated fruit crops in the region.eng
dc.description.sponsorshipPDR2020-101-031201
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.17660/actahortic.2026.1452.17en_US
dc.identifier.eissn2406-6168
dc.identifier.issn0567-7572
dc.identifier.slugcv-prod-5034402
dc.identifier.urihttp://hdl.handle.net/10400.1/28967
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInternational Society for Horticultural Science (ISHS)
dc.relationMediterranean Institute for Agriculture, Environment and Development
dc.relationMediterranean Institute for Agriculture, Environment and Development
dc.relationCHANGE - Global Change and Sustainability Institute
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAlgarve
dc.subjectCAM
dc.subjectDragon fruit
dc.subjectEvapotranspiration
dc.subjectIrrigation
dc.subjectMediterranean Basin
dc.subjectWater consumption
dc.subjectWater use efficiency
dc.titleAssessing water requirements of pitaya (S. undatus) under greenhouse conditions: a first step towards optimizing irrigationeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/05183/2020
oaire.awardNumberUIDP/05183/2020
oaire.awardNumberLA/P/0121/2020
oaire.awardTitleMediterranean Institute for Agriculture, Environment and Development
oaire.awardTitleMediterranean Institute for Agriculture, Environment and Development
oaire.awardTitleCHANGE - Global Change and Sustainability Institute
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F05183%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F05183%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0121%2F2020/PT
oaire.citation.endPage140
oaire.citation.issue1452en_US
oaire.citation.startPage135
oaire.citation.titleActa Horticulturaeen_US
oaire.citation.volume1452
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameTrindade
person.familyNameEller
person.familyNameNeves
person.familyNameDuarte
person.givenNameAna Rita
person.givenNameElda
person.givenNameMaria Alcinda
person.givenNameAmilcar
person.identifier3174949
person.identifier.ciencia-id5E1D-0009-7991
person.identifier.ciencia-id781B-EDB6-E099
person.identifier.ciencia-id081B-5FD8-0E51
person.identifier.orcid0000-0003-2291-8982
person.identifier.orcid0009-0007-6511-0568
person.identifier.orcid0000-0001-9080-777X
person.identifier.orcid0000-0002-2763-1916
person.identifier.ridF-1472-2010
person.identifier.scopus-author-id23486311900
person.identifier.scopus-author-id7102602102
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.cv.cienciaid081B-5FD8-0E51 | AMÍLCAR MANUEL MARREIROS DUARTE
rcaap.rightsrestrictedAccessen_US
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