Regulated deficit irrigation in different phenological stages of potted geranium plants: Water consumption, water relations and ornamental quality

The irrigation water requirements and sensitivity to water deficits of ornamental plants is of great interest to horticultural producers for planning irrigation strategies. The effect of different deficit irrigation strategies on physiological and morphological parameters in geranium plants was stud...

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Autores: Álvarez Martín, Sara, Bañón, Sebastián, Sánchez-Blanco, María Jesús
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2013
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/146040
Acceso en línea:http://hdl.handle.net/10261/146040
Access Level:acceso abierto
Palabra clave:Hydraulic conductivity
Water potential
Water stress
Gas exchange
Evapotranspiration
Osmotic adjustment
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spelling Regulated deficit irrigation in different phenological stages of potted geranium plants: Water consumption, water relations and ornamental qualityÁlvarez Martín, SaraBañón, SebastiánSánchez-Blanco, María JesúsHydraulic conductivityWater potentialWater stressGas exchangeEvapotranspirationOsmotic adjustmentThe irrigation water requirements and sensitivity to water deficits of ornamental plants is of great interest to horticultural producers for planning irrigation strategies. The effect of different deficit irrigation strategies on physiological and morphological parameters in geranium plants was studied in different growth phases to evaluate how such strategies can be safely used and to ascertain whether the flowering phase is sensitive to deficit irrigation. Pelargonium × hortorum L. H. Bailey plants, grown in a controlled growth chamber, were subjected to four irrigation treatments: control (100 % water field capacity throughout the experiment), sustainable deficit irrigation (75 % water field capacity throughout the experiment), and two regulated deficit irrigation treatments that included water stress during the vegetative growth phase or during the flowering development phase. Although the total amount of irrigation water was similar in the three deficit irrigation treatments (around 80 % of the control value), the lowest values for both height and flowering were found when deficit irrigation was applied during flowering. This indicates that plant quality does not only depend on the amount of water applied but also on the time when the reduction is applied, and that flowering is the most sensitive phase to water stress. Evapotranspiration was related to the formation of inflorescences and to increased plant height. When the irrigation strategy was changed, plants increased or decreased their water consumption and stomatal conductance to adjust to the new conditions by regulating stomatal opening, although, in general, the values of both parameters remained below those observed in the control plants. © 2012 Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków.This work was supported by the Spanish Ministry of Science and Innovation (AGL 2008-05258-C02-1-2, AGL 2011-30022-C02-01) and Fundación Séneca (15356/PI/10).Peer ReviewedSpringer NatureMinisterio de Ciencia e Innovación (España)Fundación SénecaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2017201720132017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/146040reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1007/s11738-012-1165-xSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1460402026-05-22T06:33:51Z
dc.title.none.fl_str_mv Regulated deficit irrigation in different phenological stages of potted geranium plants: Water consumption, water relations and ornamental quality
title Regulated deficit irrigation in different phenological stages of potted geranium plants: Water consumption, water relations and ornamental quality
spellingShingle Regulated deficit irrigation in different phenological stages of potted geranium plants: Water consumption, water relations and ornamental quality
Álvarez Martín, Sara
Hydraulic conductivity
Water potential
Water stress
Gas exchange
Evapotranspiration
Osmotic adjustment
title_short Regulated deficit irrigation in different phenological stages of potted geranium plants: Water consumption, water relations and ornamental quality
title_full Regulated deficit irrigation in different phenological stages of potted geranium plants: Water consumption, water relations and ornamental quality
title_fullStr Regulated deficit irrigation in different phenological stages of potted geranium plants: Water consumption, water relations and ornamental quality
title_full_unstemmed Regulated deficit irrigation in different phenological stages of potted geranium plants: Water consumption, water relations and ornamental quality
title_sort Regulated deficit irrigation in different phenological stages of potted geranium plants: Water consumption, water relations and ornamental quality
dc.creator.none.fl_str_mv Álvarez Martín, Sara
Bañón, Sebastián
Sánchez-Blanco, María Jesús
author Álvarez Martín, Sara
author_facet Álvarez Martín, Sara
Bañón, Sebastián
Sánchez-Blanco, María Jesús
author_role author
author2 Bañón, Sebastián
Sánchez-Blanco, María Jesús
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Fundación Séneca
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Hydraulic conductivity
Water potential
Water stress
Gas exchange
Evapotranspiration
Osmotic adjustment
topic Hydraulic conductivity
Water potential
Water stress
Gas exchange
Evapotranspiration
Osmotic adjustment
description The irrigation water requirements and sensitivity to water deficits of ornamental plants is of great interest to horticultural producers for planning irrigation strategies. The effect of different deficit irrigation strategies on physiological and morphological parameters in geranium plants was studied in different growth phases to evaluate how such strategies can be safely used and to ascertain whether the flowering phase is sensitive to deficit irrigation. Pelargonium × hortorum L. H. Bailey plants, grown in a controlled growth chamber, were subjected to four irrigation treatments: control (100 % water field capacity throughout the experiment), sustainable deficit irrigation (75 % water field capacity throughout the experiment), and two regulated deficit irrigation treatments that included water stress during the vegetative growth phase or during the flowering development phase. Although the total amount of irrigation water was similar in the three deficit irrigation treatments (around 80 % of the control value), the lowest values for both height and flowering were found when deficit irrigation was applied during flowering. This indicates that plant quality does not only depend on the amount of water applied but also on the time when the reduction is applied, and that flowering is the most sensitive phase to water stress. Evapotranspiration was related to the formation of inflorescences and to increased plant height. When the irrigation strategy was changed, plants increased or decreased their water consumption and stomatal conductance to adjust to the new conditions by regulating stomatal opening, although, in general, the values of both parameters remained below those observed in the control plants. © 2012 Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków.
publishDate 2013
dc.date.none.fl_str_mv 2013
2017
2017
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/146040
url http://hdl.handle.net/10261/146040
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1007/s11738-012-1165-x
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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