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dc.contributor.author
Ahumada Orellana, L.
dc.contributor.author
Ortega Farias, S.
dc.contributor.author
Searles, Peter Stoughton
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dc.contributor.author
Zúñiga, M.
dc.date.available
2023-08-17T14:29:07Z
dc.date.issued
2022-08
dc.identifier.citation
Ahumada Orellana, L.; Ortega Farias, S.; Searles, Peter Stoughton; Zúñiga, M.; Leaf gas exchange, water status, and oil yield responses to rewatering after irrigation cut-off periods in a superintensive drip-irrigated olive (cv. Arbequina) orchard; Springer; Irrigation Science; 41; 4; 8-2022; 557-570
dc.identifier.issn
0342-7188
dc.identifier.uri
http://hdl.handle.net/11336/208621
dc.description.abstract
Yield and oil quality responses to different degrees of water stress have often reported for olive trees, but few studies have addressed how midday stem water potential (Ψstem), stomatal conductance (gs), net assimilation (An), and oil yield respond to rewatering after experiencing water deficit. The objective of this study was to evaluate the responses of Ψstem, gs, and An in olive leaves to rewatering after irrigation cut-off (ICO) periods during 2011/2012, 2012/2013, and 2013/2014 growing seasons. The drip-irrigated olive trees were located in the Pencahue Valley (Maule Region, Chile) and trained to a superintensive hedgerow system with a spacing of 1.5 m within rows × 5.0 m between rows. The experiment included a treatment irrigated to satisfy their water requirement based on a previous study (Ψstem > − 2.5 MPa, T0) and two ICO treatments in a completely randomized design. For the ICO treatments, irrigation was cut-off from fruit set until reaching Ψstem thresholds between − 3.0 and − 3.5 MPa for T1 and − 5.0 and − 5.5 MPa for T2. Once these thresholds were reached, the irrigation was restored to that of the T0 treatment level. In the T1 treatment, Ψstem, An, and gs were all fully recovered from moderate water stress, although the time needed for recovery varied between growing seasons. Except 2012/2013 season, the Ψstem values were fully recovered 14 days from rewatering after severe water stress in the T2 treatment. An and gs values were, however, 19–36% and 33–41%, respectively, less than those observed in T0 treatment after even 14 days of rewatering. Finally, the total oil yield per plant was significantly reduced in most study seasons after severe water stress (T2). These results suggest that the evolution of plant water status must be carefully monitored when water deficits are imposed in superintensive olive orchards to avoid unwanted delays in the recovery of photosynthesis and potential reductions in oil yields.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
PHOTOSYNTHESIS
dc.subject
OIL YIELD
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OLIVE
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STEM WATER POTENTIAL
dc.subject.classification
Horticultura, Viticultura
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Leaf gas exchange, water status, and oil yield responses to rewatering after irrigation cut-off periods in a superintensive drip-irrigated olive (cv. Arbequina) orchard
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-06T11:32:08Z
dc.journal.volume
41
dc.journal.number
4
dc.journal.pagination
557-570
dc.journal.pais
Alemania
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dc.journal.ciudad
Berlin
dc.description.fil
Fil: Ahumada Orellana, L.. C. Abud & Cía. Desarrollo e Innovación. Departamento de Investigación; Chile
dc.description.fil
Fil: Ortega Farias, S.. Universidad de Talca; Chile
dc.description.fil
Fil: Searles, Peter Stoughton. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina
dc.description.fil
Fil: Zúñiga, M.. Universidad Catolica de Maule; Chile
dc.journal.title
Irrigation Science
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/10.1007/s00271-022-00817-8
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00271-022-00817-8
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