Exploring VIS/NIR reflectance indices for the estimation of water status in highbush blueberry plants grown under full and deficit irrigation

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datacite.alternateIdentifier.citationScientia Horticulturae, 256, 2019
datacite.alternateIdentifier.doi10.1016/j.scienta.2019.108557
datacite.alternateIdentifier.issn0304-4238
datacite.creatorRibera, Alejandra E.
datacite.creatorJorquera-Fontena, Emilio
datacite.creatorCastro, Manuel
datacite.creatorAcevedo-Aránguiz, Patricio S.
datacite.creatorParra, Juan Carlos
datacite.creatorReyes-Díaz, Marjorie M.
datacite.date2019
datacite.rightsRegistro bibliográfico
datacite.subjectEvapotranspiration
datacite.subjectIrrigation
datacite.subjectNormalized Difference Vegetation Index (ndvi)
datacite.subjectReflectance
datacite.subjectSpectral Indices
datacite.subjectWater Content
datacite.subjectWater Index (wi)
datacite.subjectCrop Plant
datacite.subjectCrop Yield
datacite.subjectEvapotranspiration
datacite.subjectFruit
datacite.subjectIndex Method
datacite.subjectIrrigation System
datacite.subjectNdvi
datacite.subjectOrchard
datacite.subjectPlant Water Relations
datacite.subjectRemote Sensing
datacite.subjectStomatal Conductance
datacite.subjectVisible Spectrum
datacite.subjectWater Content
datacite.subjectWater Stress
datacite.subjectVaccinium
datacite.subjectVaccinium Corymbosum
datacite.titleExploring VIS/NIR reflectance indices for the estimation of water status in highbush blueberry plants grown under full and deficit irrigation
dc.contributor.authorJORQUERA FONTENA, EMILIO JOSE
dc.description.abstractRemote sensing based on visible and near infrared (VIS/NIR) reflectance is being recognized as a promising option to estimate water status in crops. In this research, we explored the relationship between the midday leaf water potential (?<inf>MD</inf>) and stomatal conductance (g<inf>s</inf>) with the normalized difference vegetation index (NDVI) and the water index (WI) in leaves of blueberry shrubs subjected to two irrigation treatments based on crop evapotranspiration (ETc): mild water deficit (60% of ETc) and full-irrigation (100% of ETc). Moreover, the impact of the irrigation doses on photosynthesis as well as on fruit yield and quality was assessed. Noteworthy, we detected positive correlations between ?<inf>MD</inf> with NDVI (R2 = 0.61**; P < 0.01) and WI (R2 = 0.60**, P < 0.01). Besides, g<inf>s</inf> was positively related to NDVI (R2 = 0.58**, P < 0.01) and WI (R2 = 0.69**, P < 0.01). Nonetheless, both indices appear to be more sensitive to water stressed plants. Despite mild water deficit decreased photosynthetic performance, fruit yield and quality were maintained or improved. Our results revealed that the spectral indices studied here could be used as non-destructive predictors of plant water stress in blueberry orchards. Further studies are needed to confirm our outcomes. © 2019 Elsevier B.V., All rights reserved.
dc.description.ia_keywordwater, irrigation, ndvi, blueberry, deficit, indices, reflectance
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/3157
dc.language.isoen
dc.publisherElsevier BV
dc.relationinstname: ANID
dc.relationreponame: Repositorio Digital RI2.0
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.sourceScientia Horticulturae
dc.subject.ia_odsODS 6: Agua limpia y saneamiento
dc.type.driverinfo:eu-repo/semantics/article
dc.type.driverhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.type.openaireinfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
oaire.citationEdition2019
oaire.citationTitleScientia Horticulturae
oaire.citationVolume256
oaire.fundingReferenceANID PIA 16-0012 (Universidad de La Frontera)
oaire.fundingReferenceANID FONDECYT 1171286 (Regular)
oaire.licenseConditionCopyright © Elsevier B.V., 2019
oaire.resourceTypeArtículo
oaire.resourceType.enArticle
relation.isAuthorOfPublication7ce95766-cf38-4e84-8ed4-e2318ac67a54
relation.isAuthorOfPublication.latestForDiscovery7ce95766-cf38-4e84-8ed4-e2318ac67a54
uct.catalogadorjvu
uct.comunidadRecursos Naturalesen_US
uct.departamentoDepartamento de Ciencias Agropecuarias y Acuícolas
uct.facultadFacultad de Recursos Naturales
uct.indizacionScience Citation Index Expanded - SCIE
uct.indizacionScopus
uct.indizacionPubMed
uct.indizacionCAB Abstracts
uct.indizacionHorticultural Abstracts
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