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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/59890
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:35:25Zoai: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:34982025-09-29 09:35:26.178CONICET 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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1844613103597125632 |
score |
13.070432 |