Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment

Autores
Varela, Santiago A.; Weigandt, Mariana Noemi; Willems, Priscila; Bianchi, Emilio; Diez, Juan P.; Gyenge, Javier Enrique
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Post planting assistance techniques during early ontogeny may be a determining factor for tree survival in stressful habitats. In the eastern region of NW Patagonia, stands of the fast-growing exotic conifers Pinus ponderosa (Ponderosa pine) and Pseudotsuga menziesii (Douglas fir) are being established in places which are currently, or were in the past, occupied by native Austrocedrus chilensis (mountain cypress) forests. We hypothesize that mitigation techniques could (1) reduce photoinhibition and consequently increase the net photosynthesis rate of plants under high radiation conditions due to increases in the dissipation of radiation with Kaolin, (2) improve water availability in soils using hydrogel, and (3) reduce the effects of chills and frosts events in the species that are most susceptible to environmental stress, A. chilensis and P. menziesii, achieving similar values to those measured in the most resistant species, P. ponderosa using film-forming polymers such as Poly-1-p-Menthene. The short-term responses of seedlings to solar radiation, soil water availability and air temperature were evaluated through gas exchange capacities. Our results indicate that the effects of the different techniques depend on the susceptibility of the species to environmental stress. Kaolin treatment increased stomatal conductance, photosynthesis and transpiration rates in all species. For the hydrogel assay, higher pot volumetric water content was observed in treated plants than in control plants. Pinus ponderosa showed a lower response to the application of hydrogel, while a positive response was observed in A. chilensis and no effect in P. menziesii. The frost mitigation technique evaluated proved unsuitable for the three study species, but appears to work as an anti-desiccant for P. menziesii. In order to optimize the process of planting and establishment for a particular species, the package of techniques needs to be evaluated regarding the requirements and susceptibility to environmental stress of that species.
Fil: Varela, Santiago A.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Fil: Weigandt, Mariana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Fil: Willems, Priscila. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Fil: Bianchi, Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Fil: Diez, Juan P.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Fil: Gyenge, Javier Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Materia
Hydrogel
Kaolin
Poly-1-P-Menthene
Seedling Survival
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/59890
Acceder
id CONICETDig_04d31a805c01daf1885851d613715e8e
oai_identifier_str oai:ri.conicet.gov.ar:11336/59890
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessmentVarela, Santiago A.Weigandt, Mariana NoemiWillems, PriscilaBianchi, EmilioDiez, Juan P.Gyenge, Javier EnriqueHydrogelKaolinPoly-1-P-MentheneSeedling Survivalhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Post planting assistance techniques during early ontogeny may be a determining factor for tree survival in stressful habitats. In the eastern region of NW Patagonia, stands of the fast-growing exotic conifers Pinus ponderosa (Ponderosa pine) and Pseudotsuga menziesii (Douglas fir) are being established in places which are currently, or were in the past, occupied by native Austrocedrus chilensis (mountain cypress) forests. We hypothesize that mitigation techniques could (1) reduce photoinhibition and consequently increase the net photosynthesis rate of plants under high radiation conditions due to increases in the dissipation of radiation with Kaolin, (2) improve water availability in soils using hydrogel, and (3) reduce the effects of chills and frosts events in the species that are most susceptible to environmental stress, A. chilensis and P. menziesii, achieving similar values to those measured in the most resistant species, P. ponderosa using film-forming polymers such as Poly-1-p-Menthene. The short-term responses of seedlings to solar radiation, soil water availability and air temperature were evaluated through gas exchange capacities. Our results indicate that the effects of the different techniques depend on the susceptibility of the species to environmental stress. Kaolin treatment increased stomatal conductance, photosynthesis and transpiration rates in all species. For the hydrogel assay, higher pot volumetric water content was observed in treated plants than in control plants. Pinus ponderosa showed a lower response to the application of hydrogel, while a positive response was observed in A. chilensis and no effect in P. menziesii. The frost mitigation technique evaluated proved unsuitable for the three study species, but appears to work as an anti-desiccant for P. menziesii. In order to optimize the process of planting and establishment for a particular species, the package of techniques needs to be evaluated regarding the requirements and susceptibility to environmental stress of that species.Fil: Varela, Santiago A.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; ArgentinaFil: Weigandt, Mariana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; ArgentinaFil: Willems, Priscila. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; ArgentinaFil: Bianchi, Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; ArgentinaFil: Diez, Juan P.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; ArgentinaFil: Gyenge, Javier Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; ArgentinaSpringer2016-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/59890Varela, Santiago A.; Weigandt, Mariana Noemi; Willems, Priscila; Bianchi, Emilio; Diez, Juan P.; et al.; Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment; Springer; New Forests; 47; 1; 1-2016; 87-1030169-4286CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s11056-015-9485-5info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s11056-015-9485-5info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:03:29Zoai:ri.conicet.gov.ar:11336/59890instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:03:29.308CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment
title Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment
spellingShingle Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment
Varela, Santiago A.
Hydrogel
Kaolin
Poly-1-P-Menthene
Seedling Survival
title_short Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment
title_full Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment
title_fullStr Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment
title_full_unstemmed Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment
title_sort Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment
dc.creator.none.fl_str_mv Varela, Santiago A.
Weigandt, Mariana Noemi
Willems, Priscila
Bianchi, Emilio
Diez, Juan P.
Gyenge, Javier Enrique
author Varela, Santiago A.
author_facet Varela, Santiago A.
Weigandt, Mariana Noemi
Willems, Priscila
Bianchi, Emilio
Diez, Juan P.
Gyenge, Javier Enrique
author_role author
author2 Weigandt, Mariana Noemi
Willems, Priscila
Bianchi, Emilio
Diez, Juan P.
Gyenge, Javier Enrique
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Hydrogel
Kaolin
Poly-1-P-Menthene
Seedling Survival
topic Hydrogel
Kaolin
Poly-1-P-Menthene
Seedling Survival
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Post planting assistance techniques during early ontogeny may be a determining factor for tree survival in stressful habitats. In the eastern region of NW Patagonia, stands of the fast-growing exotic conifers Pinus ponderosa (Ponderosa pine) and Pseudotsuga menziesii (Douglas fir) are being established in places which are currently, or were in the past, occupied by native Austrocedrus chilensis (mountain cypress) forests. We hypothesize that mitigation techniques could (1) reduce photoinhibition and consequently increase the net photosynthesis rate of plants under high radiation conditions due to increases in the dissipation of radiation with Kaolin, (2) improve water availability in soils using hydrogel, and (3) reduce the effects of chills and frosts events in the species that are most susceptible to environmental stress, A. chilensis and P. menziesii, achieving similar values to those measured in the most resistant species, P. ponderosa using film-forming polymers such as Poly-1-p-Menthene. The short-term responses of seedlings to solar radiation, soil water availability and air temperature were evaluated through gas exchange capacities. Our results indicate that the effects of the different techniques depend on the susceptibility of the species to environmental stress. Kaolin treatment increased stomatal conductance, photosynthesis and transpiration rates in all species. For the hydrogel assay, higher pot volumetric water content was observed in treated plants than in control plants. Pinus ponderosa showed a lower response to the application of hydrogel, while a positive response was observed in A. chilensis and no effect in P. menziesii. The frost mitigation technique evaluated proved unsuitable for the three study species, but appears to work as an anti-desiccant for P. menziesii. In order to optimize the process of planting and establishment for a particular species, the package of techniques needs to be evaluated regarding the requirements and susceptibility to environmental stress of that species.
Fil: Varela, Santiago A.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Fil: Weigandt, Mariana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Fil: Willems, Priscila. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Fil: Bianchi, Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Fil: Diez, Juan P.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
Fil: Gyenge, Javier Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
description Post planting assistance techniques during early ontogeny may be a determining factor for tree survival in stressful habitats. In the eastern region of NW Patagonia, stands of the fast-growing exotic conifers Pinus ponderosa (Ponderosa pine) and Pseudotsuga menziesii (Douglas fir) are being established in places which are currently, or were in the past, occupied by native Austrocedrus chilensis (mountain cypress) forests. We hypothesize that mitigation techniques could (1) reduce photoinhibition and consequently increase the net photosynthesis rate of plants under high radiation conditions due to increases in the dissipation of radiation with Kaolin, (2) improve water availability in soils using hydrogel, and (3) reduce the effects of chills and frosts events in the species that are most susceptible to environmental stress, A. chilensis and P. menziesii, achieving similar values to those measured in the most resistant species, P. ponderosa using film-forming polymers such as Poly-1-p-Menthene. The short-term responses of seedlings to solar radiation, soil water availability and air temperature were evaluated through gas exchange capacities. Our results indicate that the effects of the different techniques depend on the susceptibility of the species to environmental stress. Kaolin treatment increased stomatal conductance, photosynthesis and transpiration rates in all species. For the hydrogel assay, higher pot volumetric water content was observed in treated plants than in control plants. Pinus ponderosa showed a lower response to the application of hydrogel, while a positive response was observed in A. chilensis and no effect in P. menziesii. The frost mitigation technique evaluated proved unsuitable for the three study species, but appears to work as an anti-desiccant for P. menziesii. In order to optimize the process of planting and establishment for a particular species, the package of techniques needs to be evaluated regarding the requirements and susceptibility to environmental stress of that species.
publishDate 2016
dc.date.none.fl_str_mv 2016-01
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/11336/59890
Varela, Santiago A.; Weigandt, Mariana Noemi; Willems, Priscila; Bianchi, Emilio; Diez, Juan P.; et al.; Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment; Springer; New Forests; 47; 1; 1-2016; 87-103
0169-4286
CONICET Digital
CONICET
url http://hdl.handle.net/11336/59890
identifier_str_mv Varela, Santiago A.; Weigandt, Mariana Noemi; Willems, Priscila; Bianchi, Emilio; Diez, Juan P.; et al.; Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment; Springer; New Forests; 47; 1; 1-2016; 87-103
0169-4286
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s11056-015-9485-5
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s11056-015-9485-5
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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