Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina
- Autores
- Peri, Pablo Luis; Martínez Pastur, Guillermo José; Lencinas, María Vanessa
- Año de publicación
- 2009
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Net photosynthetic rate (A) and stomatal conductance (gs) of leaves of Nothofagus pumilio and N. antarctica seedlings were measured at different photosynthetic photon flux densities (PPFDs, 20, 150, 250, 500, 750, 1,000, 1,500 and 2,200 µmol/m2/s) and after 60 minutes of shade to determine the rate of photosynthetic induction after seedling transition from low to high PPFD. A and gs were also measured to evaluate the responses to water stress and the tolerance to waterlogging. N. pumilio had higher A values than N. antarctica for all light intensities measured with the maximum value of 16.8 µmol CO2/m2/s saturated at 1,000 µmol/m2/s PPFD. Values of gs for both Nothofagus species also declined as light intensity decreased. The times required for full induction of A were 18 and 27 minutes after the increase of PPFD (full sun) for N. pumilio and N. antarctica, respectively. There was a negative relationship between A and water stress, expressed as pre-dawn leaf water potential (ψlp), where the reduction in gs was the main factor that reduced A in both species. Tolerance to waterlogging was related with changes in A and gs where N. antarctica was more tolerant. These photosynthetic results of Nothofagus leaves to fluctuating light, water stress and waterlogging could be used to estimate the responses of regeneration to environmental conditions under the dynamics of natural stands, after silvicultural practices and for restoration plans.
EEA Santa Cruz
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Santa Cruz; Argentina
Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral (UNPA); Argentina
Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina
Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Austral de Investigaciones Científicas (CADIC); Argentina
Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Austral de Investigaciones Científicas (CADIC); Argentina - Fuente
- Journal of Forest Science 55(3): 101-111. (2009)
- Materia
-
Nothofagus
Fotosíntesis
Sombra
Estrés por Sequía
Anegamiento
Régimenes de Luz
Conductancia Estomática
Nothofagus pumilio
Regeneración
Silvicultura
Photosynthesis
Shade
Drought Stress
Waterlogging
Light Regimes
Stomatal Conductance
Regeneration
Silviculture
Nothofagus antarctica
Ñire
Lenga
Región Patagónica - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/22919
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Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, ArgentinaPeri, Pablo LuisMartínez Pastur, Guillermo JoséLencinas, María VanessaNothofagusFotosíntesisSombraEstrés por SequíaAnegamientoRégimenes de LuzConductancia EstomáticaNothofagus pumilioRegeneraciónSilviculturaPhotosynthesisShadeDrought StressWaterloggingLight RegimesStomatal ConductanceRegenerationSilvicultureNothofagus antarcticaÑireLengaRegión PatagónicaNet photosynthetic rate (A) and stomatal conductance (gs) of leaves of Nothofagus pumilio and N. antarctica seedlings were measured at different photosynthetic photon flux densities (PPFDs, 20, 150, 250, 500, 750, 1,000, 1,500 and 2,200 µmol/m2/s) and after 60 minutes of shade to determine the rate of photosynthetic induction after seedling transition from low to high PPFD. A and gs were also measured to evaluate the responses to water stress and the tolerance to waterlogging. N. pumilio had higher A values than N. antarctica for all light intensities measured with the maximum value of 16.8 µmol CO2/m2/s saturated at 1,000 µmol/m2/s PPFD. Values of gs for both Nothofagus species also declined as light intensity decreased. The times required for full induction of A were 18 and 27 minutes after the increase of PPFD (full sun) for N. pumilio and N. antarctica, respectively. There was a negative relationship between A and water stress, expressed as pre-dawn leaf water potential (ψlp), where the reduction in gs was the main factor that reduced A in both species. Tolerance to waterlogging was related with changes in A and gs where N. antarctica was more tolerant. These photosynthetic results of Nothofagus leaves to fluctuating light, water stress and waterlogging could be used to estimate the responses of regeneration to environmental conditions under the dynamics of natural stands, after silvicultural practices and for restoration plans.EEA Santa CruzFil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Santa Cruz; ArgentinaFil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral (UNPA); ArgentinaFil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); ArgentinaFil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Austral de Investigaciones Científicas (CADIC); ArgentinaFil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Austral de Investigaciones Científicas (CADIC); ArgentinaCzech Academy of Agricultural Sciences2025-07-04T17:34:12Z2025-07-04T17:34:12Z2009-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/22919https://jfs.agriculturejournals.cz/artkey/jfs-200903-0001_photosynthetic-response-to-different-light-intensities-and-water-status-of-two-main-nothofagus-species-of-south.phpPeri P.L., Martínez Pastur G., Lencinas M.V. (2009) Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina. Journal of Forest Science 55(3): 101-111.1805-935X (electronic)1212-4834https://doi.org/10.17221/66/2008-JFSJournal of Forest Science 55(3): 101-111. (2009)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-10-16T09:32:23Zoai:localhost:20.500.12123/22919instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-16 09:32:23.466INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina |
title |
Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina |
spellingShingle |
Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina Peri, Pablo Luis Nothofagus Fotosíntesis Sombra Estrés por Sequía Anegamiento Régimenes de Luz Conductancia Estomática Nothofagus pumilio Regeneración Silvicultura Photosynthesis Shade Drought Stress Waterlogging Light Regimes Stomatal Conductance Regeneration Silviculture Nothofagus antarctica Ñire Lenga Región Patagónica |
title_short |
Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina |
title_full |
Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina |
title_fullStr |
Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina |
title_full_unstemmed |
Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina |
title_sort |
Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina |
dc.creator.none.fl_str_mv |
Peri, Pablo Luis Martínez Pastur, Guillermo José Lencinas, María Vanessa |
author |
Peri, Pablo Luis |
author_facet |
Peri, Pablo Luis Martínez Pastur, Guillermo José Lencinas, María Vanessa |
author_role |
author |
author2 |
Martínez Pastur, Guillermo José Lencinas, María Vanessa |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Nothofagus Fotosíntesis Sombra Estrés por Sequía Anegamiento Régimenes de Luz Conductancia Estomática Nothofagus pumilio Regeneración Silvicultura Photosynthesis Shade Drought Stress Waterlogging Light Regimes Stomatal Conductance Regeneration Silviculture Nothofagus antarctica Ñire Lenga Región Patagónica |
topic |
Nothofagus Fotosíntesis Sombra Estrés por Sequía Anegamiento Régimenes de Luz Conductancia Estomática Nothofagus pumilio Regeneración Silvicultura Photosynthesis Shade Drought Stress Waterlogging Light Regimes Stomatal Conductance Regeneration Silviculture Nothofagus antarctica Ñire Lenga Región Patagónica |
dc.description.none.fl_txt_mv |
Net photosynthetic rate (A) and stomatal conductance (gs) of leaves of Nothofagus pumilio and N. antarctica seedlings were measured at different photosynthetic photon flux densities (PPFDs, 20, 150, 250, 500, 750, 1,000, 1,500 and 2,200 µmol/m2/s) and after 60 minutes of shade to determine the rate of photosynthetic induction after seedling transition from low to high PPFD. A and gs were also measured to evaluate the responses to water stress and the tolerance to waterlogging. N. pumilio had higher A values than N. antarctica for all light intensities measured with the maximum value of 16.8 µmol CO2/m2/s saturated at 1,000 µmol/m2/s PPFD. Values of gs for both Nothofagus species also declined as light intensity decreased. The times required for full induction of A were 18 and 27 minutes after the increase of PPFD (full sun) for N. pumilio and N. antarctica, respectively. There was a negative relationship between A and water stress, expressed as pre-dawn leaf water potential (ψlp), where the reduction in gs was the main factor that reduced A in both species. Tolerance to waterlogging was related with changes in A and gs where N. antarctica was more tolerant. These photosynthetic results of Nothofagus leaves to fluctuating light, water stress and waterlogging could be used to estimate the responses of regeneration to environmental conditions under the dynamics of natural stands, after silvicultural practices and for restoration plans. EEA Santa Cruz Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Santa Cruz; Argentina Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral (UNPA); Argentina Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Austral de Investigaciones Científicas (CADIC); Argentina Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Austral de Investigaciones Científicas (CADIC); Argentina |
description |
Net photosynthetic rate (A) and stomatal conductance (gs) of leaves of Nothofagus pumilio and N. antarctica seedlings were measured at different photosynthetic photon flux densities (PPFDs, 20, 150, 250, 500, 750, 1,000, 1,500 and 2,200 µmol/m2/s) and after 60 minutes of shade to determine the rate of photosynthetic induction after seedling transition from low to high PPFD. A and gs were also measured to evaluate the responses to water stress and the tolerance to waterlogging. N. pumilio had higher A values than N. antarctica for all light intensities measured with the maximum value of 16.8 µmol CO2/m2/s saturated at 1,000 µmol/m2/s PPFD. Values of gs for both Nothofagus species also declined as light intensity decreased. The times required for full induction of A were 18 and 27 minutes after the increase of PPFD (full sun) for N. pumilio and N. antarctica, respectively. There was a negative relationship between A and water stress, expressed as pre-dawn leaf water potential (ψlp), where the reduction in gs was the main factor that reduced A in both species. Tolerance to waterlogging was related with changes in A and gs where N. antarctica was more tolerant. These photosynthetic results of Nothofagus leaves to fluctuating light, water stress and waterlogging could be used to estimate the responses of regeneration to environmental conditions under the dynamics of natural stands, after silvicultural practices and for restoration plans. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-03-31 2025-07-04T17:34:12Z 2025-07-04T17:34:12Z |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/20.500.12123/22919 https://jfs.agriculturejournals.cz/artkey/jfs-200903-0001_photosynthetic-response-to-different-light-intensities-and-water-status-of-two-main-nothofagus-species-of-south.php Peri P.L., Martínez Pastur G., Lencinas M.V. (2009) Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina. Journal of Forest Science 55(3): 101-111. 1805-935X (electronic) 1212-4834 https://doi.org/10.17221/66/2008-JFS |
url |
http://hdl.handle.net/20.500.12123/22919 https://jfs.agriculturejournals.cz/artkey/jfs-200903-0001_photosynthetic-response-to-different-light-intensities-and-water-status-of-two-main-nothofagus-species-of-south.php https://doi.org/10.17221/66/2008-JFS |
identifier_str_mv |
Peri P.L., Martínez Pastur G., Lencinas M.V. (2009) Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina. Journal of Forest Science 55(3): 101-111. 1805-935X (electronic) 1212-4834 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Czech Academy of Agricultural Sciences |
publisher.none.fl_str_mv |
Czech Academy of Agricultural Sciences |
dc.source.none.fl_str_mv |
Journal of Forest Science 55(3): 101-111. (2009) 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 |
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1846143591521452032 |
score |
12.712165 |