Response of sink manipulation in Lapins sweet cherry (Prunus avium L.) branches to late-deficit irrigation

Simple item page
datacite.alternateIdentifier.citationScientia Horticulturae, 304, 2022
datacite.alternateIdentifier.doi10.1016/j.scienta.2022.111323
datacite.alternateIdentifier.issn0304-4238
datacite.creatorJorquera-Fontena, Emilio
datacite.creatorTighe-Neira, Ricardo
datacite.creatorBota, Josefina
datacite.creatorInostroza-Blancheteau, Claudio
datacite.creatorPastenes, Claudio
datacite.date2022
datacite.rightsRegistro bibliográfico
datacite.subjectFruit Yield And Quality
datacite.subjectLeaf Soluble Sugars
datacite.subjectPhotosynthesis
datacite.subjectSource-sink Relationships
datacite.subjectWater Deficit
datacite.subjectEvapotranspiration
datacite.subjectIrrigation
datacite.subjectPhotosynthesis
datacite.subjectSource-sink Dynamics
datacite.titleResponse of sink manipulation in Lapins sweet cherry (Prunus avium L.) branches to late-deficit irrigation
dc.contributor.authorJORQUERA FONTENA, EMILIO JOSE
dc.contributor.authorTIGHE NEIRA, RICARDO MARCELO
dc.contributor.authorINOSTROZA BLANCHETEAU, CLAUDIO ANDRES
dc.description.abstractPhotosynthetic traits, leaf soluble sugars and fruit yield and size were evaluated in order to identify the role of early sink manipulation (girdling and fruiting spur thinning applied in winter) in modulating the effect of late-deficit irrigation (recovering 60% of crop evapotranspiration during 36 days pre-harvest) in Lapins sweet cherry branches. Photosynthesis (P<inf>N</inf>), stomatal conductance (g<inf>s</inf>), and fruit weight were affected by both treatments, whereas intercellular CO<inf>2</inf> concentration of leaves (C<inf>i</inf>), mesophyll conductance (g<inf>m</inf>), Rubisco carboxylase activity (V<inf>cmax</inf>), electron transport rate (J<inf>max</inf>), leaf soluble sugars and branch yield were exclusively affected by sink manipulation. The effect of sink manipulation on P<inf>N</inf> was mainly observed in the girdling treatment as it was not altered by thinning. In girdled branches, P<inf>N</inf> dropped by 34%, accompanied by a two-fold increase in leaf soluble sugars, indicating that sink feedback regulation of carbon assimilation occurred. Irrespective of the irrigation, the higher P<inf>N</inf> observed in the controls were not sufficient to achieve the fruit weight and yield of the girdled branches, indicating that fruit carbon demand in control branches was source-limited. The depressed P<inf>N</inf> by girdling was associated with significant reductions in g<inf>s</inf>, g<inf>m</inf>, V<inf>cmax</inf> and J<inf>max</inf>. Since lowered P<inf>N</inf> by deficit irrigation was neither attributable to a g<inf>s</inf>-associated decrease in C<inf>i</inf> nor to changes in any other photosynthetic variable, further research is needed to clarify this point. Results showed that irrigation deficit was sufficient to reduce P<inf>N</inf> in girdled branches, whereas it had no effect in control and thinned branches. Thus, the depressive effect of deficit irrigation on P<inf>N</inf> appeared to be exacerbated by the sink effect. © 2022 Elsevier B.V., All rights reserved.
dc.description.ia_keywordbranches, sink, irrigation, effect, deficit, fruit, were
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/4700
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 11: Ciudades y comunidades sostenibles
dc.subject.ia_oecd1nCiencias Naturales
dc.subject.ia_oecd2nCiencias Biológicas
dc.subject.ia_oecd3nCiencias del Medio Ambiente
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.citationEdition2022
oaire.citationTitleScientia Horticulturae
oaire.citationVolume304
oaire.fundingReferenceANID FONDECYT 3170734 (Postdoctorado)
oaire.licenseConditionCopyright © Elsevier B.V., 2022
oaire.resourceTypeArtículo
oaire.resourceType.enArticle
relation.isAuthorOfPublication7ce95766-cf38-4e84-8ed4-e2318ac67a54
relation.isAuthorOfPublication2f2f2515-f938-4ac4-9f9f-aa7ad24fd65c
relation.isAuthorOfPublication25287ee1-cae8-401d-b42c-ee3f8fc05d2a
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
Files
Collections
Producción Alimentaria