Effects of the time of drought occurrence within the growing season on growth and survival of Pinus ponderosa seedlings

Autores
Fernandez, Marí­a Elena; Gyenge, Javier; Varela, Santiago Agustin; De Urquiza, Maria Mercedes
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
Although there is certainty about the increasing frequency of extreme climatic events, the consequences of changing patterns of drought events within the growing season on the growth and survival of different species are much less certain. In particular, little knowledge is available on the differential effect on tree seedlings of a drought event at different times within the growing season. The objective of this study was to quantify the effect of a drought event imposed at different times over the growing season on the growth, survival and some related morphological and physiological variables of Pinus ponderosa seedlings from two seed sources. Four treatments were applied: control conditions; spring drought; summer drought and spring plus summer drought (SpSuD). A drought event in spring reduced stem growth and biomass accumulation in ponderosa pine seedlings during the occurrence of the drought and afterwards, even when plant water status had recovered. The lack of growth recovery could not be associated with loss of stem hydraulic conductivity or reduction in stomatal conductance after drought. However, the spring drought did not differentially affect plant survival, as was the case with prolonged drought in the SpSuD treatment. The summer drought event had a significant but much smaller impact on plant growth. Our results suggest different consequences of a drought event in spring or in summer in ponderosa pine seedlings. This knowledge may be relevant to understand and predict tree seedlings responses to changing patterns of drought events within the growing season in the framework of climatic change.
Fil: Fernandez, Marí­a Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gyenge, Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Varela, Santiago Agustin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
Fil: De Urquiza, Maria Mercedes. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
Fuente
Trees : structure and function 28 (3) : 745–756 (June 2014)
Materia
Pinus Ponderosa
Arboles Forestales
Forest Trees
Drought
Growth Period
Seedlings
Sequía
Período de Crecimiento
Plántulas
Sequía de Primavera
Sequía de Verano
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/1541
Acceder
id INTADig_a2561465242b97da33b64ab694f1e07e
oai_identifier_str oai:localhost:20.500.12123/1541
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Effects of the time of drought occurrence within the growing season on growth and survival of Pinus ponderosa seedlingsFernandez, Marí­a ElenaGyenge, JavierVarela, Santiago AgustinDe Urquiza, Maria MercedesPinus PonderosaArboles ForestalesForest TreesDroughtGrowth PeriodSeedlingsSequíaPeríodo de CrecimientoPlántulasSequía de PrimaveraSequía de VeranoAlthough there is certainty about the increasing frequency of extreme climatic events, the consequences of changing patterns of drought events within the growing season on the growth and survival of different species are much less certain. In particular, little knowledge is available on the differential effect on tree seedlings of a drought event at different times within the growing season. The objective of this study was to quantify the effect of a drought event imposed at different times over the growing season on the growth, survival and some related morphological and physiological variables of Pinus ponderosa seedlings from two seed sources. Four treatments were applied: control conditions; spring drought; summer drought and spring plus summer drought (SpSuD). A drought event in spring reduced stem growth and biomass accumulation in ponderosa pine seedlings during the occurrence of the drought and afterwards, even when plant water status had recovered. The lack of growth recovery could not be associated with loss of stem hydraulic conductivity or reduction in stomatal conductance after drought. However, the spring drought did not differentially affect plant survival, as was the case with prolonged drought in the SpSuD treatment. The summer drought event had a significant but much smaller impact on plant growth. Our results suggest different consequences of a drought event in spring or in summer in ponderosa pine seedlings. This knowledge may be relevant to understand and predict tree seedlings responses to changing patterns of drought events within the growing season in the framework of climatic change.Fil: Fernandez, Marí­a Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gyenge, Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Varela, Santiago Agustin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; ArgentinaFil: De Urquiza, Maria Mercedes. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina2017-10-19T17:34:11Z2017-10-19T17:34:11Z2014-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/1541https://link.springer.com/article/10.1007/s00468-014-0986-10931-1890 (Print)1432-2285 (Online)https://doi.org/10.1007/s00468-014-0986-1Trees : structure and function 28 (3) : 745–756 (June 2014)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:12Zoai:localhost:20.500.12123/1541instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:13.213INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Effects of the time of drought occurrence within the growing season on growth and survival of Pinus ponderosa seedlings
title Effects of the time of drought occurrence within the growing season on growth and survival of Pinus ponderosa seedlings
spellingShingle Effects of the time of drought occurrence within the growing season on growth and survival of Pinus ponderosa seedlings
Fernandez, Marí­a Elena
Pinus Ponderosa
Arboles Forestales
Forest Trees
Drought
Growth Period
Seedlings
Sequía
Período de Crecimiento
Plántulas
Sequía de Primavera
Sequía de Verano
title_short Effects of the time of drought occurrence within the growing season on growth and survival of Pinus ponderosa seedlings
title_full Effects of the time of drought occurrence within the growing season on growth and survival of Pinus ponderosa seedlings
title_fullStr Effects of the time of drought occurrence within the growing season on growth and survival of Pinus ponderosa seedlings
title_full_unstemmed Effects of the time of drought occurrence within the growing season on growth and survival of Pinus ponderosa seedlings
title_sort Effects of the time of drought occurrence within the growing season on growth and survival of Pinus ponderosa seedlings
dc.creator.none.fl_str_mv Fernandez, Marí­a Elena
Gyenge, Javier
Varela, Santiago Agustin
De Urquiza, Maria Mercedes
author Fernandez, Marí­a Elena
author_facet Fernandez, Marí­a Elena
Gyenge, Javier
Varela, Santiago Agustin
De Urquiza, Maria Mercedes
author_role author
author2 Gyenge, Javier
Varela, Santiago Agustin
De Urquiza, Maria Mercedes
author2_role author
author
author
dc.subject.none.fl_str_mv Pinus Ponderosa
Arboles Forestales
Forest Trees
Drought
Growth Period
Seedlings
Sequía
Período de Crecimiento
Plántulas
Sequía de Primavera
Sequía de Verano
topic Pinus Ponderosa
Arboles Forestales
Forest Trees
Drought
Growth Period
Seedlings
Sequía
Período de Crecimiento
Plántulas
Sequía de Primavera
Sequía de Verano
dc.description.none.fl_txt_mv Although there is certainty about the increasing frequency of extreme climatic events, the consequences of changing patterns of drought events within the growing season on the growth and survival of different species are much less certain. In particular, little knowledge is available on the differential effect on tree seedlings of a drought event at different times within the growing season. The objective of this study was to quantify the effect of a drought event imposed at different times over the growing season on the growth, survival and some related morphological and physiological variables of Pinus ponderosa seedlings from two seed sources. Four treatments were applied: control conditions; spring drought; summer drought and spring plus summer drought (SpSuD). A drought event in spring reduced stem growth and biomass accumulation in ponderosa pine seedlings during the occurrence of the drought and afterwards, even when plant water status had recovered. The lack of growth recovery could not be associated with loss of stem hydraulic conductivity or reduction in stomatal conductance after drought. However, the spring drought did not differentially affect plant survival, as was the case with prolonged drought in the SpSuD treatment. The summer drought event had a significant but much smaller impact on plant growth. Our results suggest different consequences of a drought event in spring or in summer in ponderosa pine seedlings. This knowledge may be relevant to understand and predict tree seedlings responses to changing patterns of drought events within the growing season in the framework of climatic change.
Fil: Fernandez, Marí­a Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gyenge, Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Varela, Santiago Agustin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
Fil: De Urquiza, Maria Mercedes. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
description Although there is certainty about the increasing frequency of extreme climatic events, the consequences of changing patterns of drought events within the growing season on the growth and survival of different species are much less certain. In particular, little knowledge is available on the differential effect on tree seedlings of a drought event at different times within the growing season. The objective of this study was to quantify the effect of a drought event imposed at different times over the growing season on the growth, survival and some related morphological and physiological variables of Pinus ponderosa seedlings from two seed sources. Four treatments were applied: control conditions; spring drought; summer drought and spring plus summer drought (SpSuD). A drought event in spring reduced stem growth and biomass accumulation in ponderosa pine seedlings during the occurrence of the drought and afterwards, even when plant water status had recovered. The lack of growth recovery could not be associated with loss of stem hydraulic conductivity or reduction in stomatal conductance after drought. However, the spring drought did not differentially affect plant survival, as was the case with prolonged drought in the SpSuD treatment. The summer drought event had a significant but much smaller impact on plant growth. Our results suggest different consequences of a drought event in spring or in summer in ponderosa pine seedlings. This knowledge may be relevant to understand and predict tree seedlings responses to changing patterns of drought events within the growing season in the framework of climatic change.
publishDate 2014
dc.date.none.fl_str_mv 2014-06
2017-10-19T17:34:11Z
2017-10-19T17:34:11Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/1541
https://link.springer.com/article/10.1007/s00468-014-0986-1
0931-1890 (Print)
1432-2285 (Online)
https://doi.org/10.1007/s00468-014-0986-1
url http://hdl.handle.net/20.500.12123/1541
https://link.springer.com/article/10.1007/s00468-014-0986-1
https://doi.org/10.1007/s00468-014-0986-1
identifier_str_mv 0931-1890 (Print)
1432-2285 (Online)
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Trees : structure and function 28 (3) : 745–756 (June 2014)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
_version_ 1844619118601306112
score 12.559606

Publicaciones similares