Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina

Autores
Edwards, Priscila; Varela, Santiago Agustin; Lopez, Dardo Ruben; Willems, Priscila Mabel; Lopez, Aldana; Gyenge, Javier
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In Patagonia, arid and semiarid lands are being affected both by inappropriate management practices, which are leading to degradation, and by volcanic activity, whose effects are still unclear. This study aimed to test whether superficial deposition of volcanic tephra could benefit two of the most prominent Patagonian forage grass species (Poa ligularis and Pappostipa speciosa var. speciosa). Pots with P. ligularis and P. speciosa were kept under wet (W) and dry (D) conditions in the presence (T+) or absence (T−) of tephra for 105 days, and then were all well-watered. We determined the effects of tephra on soil water retention and conservation, soil moisture content (% v/v), plant growth, stomatal conductance (gs), and gs recovery capacity. The water regime significantly affected both species performance and gs. The presence of tephra increased soil water conservation, soil moisture content in wet conditions, and P. ligularis gs in wet conditions, and decreased senescence in dry conditions (9% in P. ligularis and 16% in P. speciosa). The presence of tephra allowed roots to grow in 8/10 and 2/10 pots in W conditions for P. ligularis and P. speciosa, respectively, and in only 1/10 pots in D conditions, only for P. ligularis. Tephra was also associated with gs recovery after dry conditions. Poa ligularis was more positively affected by tephra than P. speciosa, probably because P. ligularis has higher phenotypic plasticity. The positive effects of tephra may increase the resilience and resistance of P. speciosa and P. ligularis to periods of water shortage.
Estación Experimental Agropecuaria Bariloche
Fil: Edwards, Priscila. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Varela, Santiago Agustín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Barilohe. Área Sistemas Forestales. Grupo de Ecología Forestal; Argentina
Fil: Lopez, Dardo Ruben. Instituto Nacional de Tecnología Agropecuaria (INTA). Estacion Experimental Agropecuaria Manfredi. Estación Forestal Villa Dolores; Argentina
Fil: Willems, Priscila Mabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
Fil: Lopez, Aldana Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gyenge, Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Tandil; Argentina
Fuente
Arid Land Research and Management 31 (4) : 373-387. (2017)
Materia
Gramíneas Forrajeras
Gramineas
Conservación de Suelos
Zona Árida
Feed Grasses
Grasses
Soil Conservation
Arid Zones
Poa Ligularis
Pappostipa Speciosa
Región Patagónica
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/4965
Acceder
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oai_identifier_str oai:localhost:20.500.12123/4965
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in ArgentinaEdwards, PriscilaVarela, Santiago AgustinLopez, Dardo RubenWillems, Priscila MabelLopez, AldanaGyenge, JavierGramíneas ForrajerasGramineasConservación de SuelosZona ÁridaFeed GrassesGrassesSoil ConservationArid ZonesPoa LigularisPappostipa SpeciosaRegión PatagónicaIn Patagonia, arid and semiarid lands are being affected both by inappropriate management practices, which are leading to degradation, and by volcanic activity, whose effects are still unclear. This study aimed to test whether superficial deposition of volcanic tephra could benefit two of the most prominent Patagonian forage grass species (Poa ligularis and Pappostipa speciosa var. speciosa). Pots with P. ligularis and P. speciosa were kept under wet (W) and dry (D) conditions in the presence (T+) or absence (T−) of tephra for 105 days, and then were all well-watered. We determined the effects of tephra on soil water retention and conservation, soil moisture content (% v/v), plant growth, stomatal conductance (gs), and gs recovery capacity. The water regime significantly affected both species performance and gs. The presence of tephra increased soil water conservation, soil moisture content in wet conditions, and P. ligularis gs in wet conditions, and decreased senescence in dry conditions (9% in P. ligularis and 16% in P. speciosa). The presence of tephra allowed roots to grow in 8/10 and 2/10 pots in W conditions for P. ligularis and P. speciosa, respectively, and in only 1/10 pots in D conditions, only for P. ligularis. Tephra was also associated with gs recovery after dry conditions. Poa ligularis was more positively affected by tephra than P. speciosa, probably because P. ligularis has higher phenotypic plasticity. The positive effects of tephra may increase the resilience and resistance of P. speciosa and P. ligularis to periods of water shortage.Estación Experimental Agropecuaria BarilocheFil: Edwards, Priscila. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Varela, Santiago Agustín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Barilohe. Área Sistemas Forestales. Grupo de Ecología Forestal; ArgentinaFil: Lopez, Dardo Ruben. Instituto Nacional de Tecnología Agropecuaria (INTA). Estacion Experimental Agropecuaria Manfredi. Estación Forestal Villa Dolores; ArgentinaFil: Willems, Priscila Mabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; ArgentinaFil: Lopez, Aldana Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gyenge, Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Tandil; ArgentinaTaylor & Francis2019-04-24T13:22:29Z2019-04-24T13:22:29Z2017-08-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/4965https://www.tandfonline.com/doi/abs/10.1080/15324982.2017.13492091532-49821532-4990https://doi.org/10.1080/15324982.2017.1349209Arid Land Research and Management 31 (4) : 373-387. (2017)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:38Zoai:localhost:20.500.12123/4965instacron: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 13:44:38.984INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina
title Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina
spellingShingle Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina
Edwards, Priscila
Gramíneas Forrajeras
Gramineas
Conservación de Suelos
Zona Árida
Feed Grasses
Grasses
Soil Conservation
Arid Zones
Poa Ligularis
Pappostipa Speciosa
Región Patagónica
title_short Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina
title_full Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina
title_fullStr Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina
title_full_unstemmed Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina
title_sort Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina
dc.creator.none.fl_str_mv Edwards, Priscila
Varela, Santiago Agustin
Lopez, Dardo Ruben
Willems, Priscila Mabel
Lopez, Aldana
Gyenge, Javier
author Edwards, Priscila
author_facet Edwards, Priscila
Varela, Santiago Agustin
Lopez, Dardo Ruben
Willems, Priscila Mabel
Lopez, Aldana
Gyenge, Javier
author_role author
author2 Varela, Santiago Agustin
Lopez, Dardo Ruben
Willems, Priscila Mabel
Lopez, Aldana
Gyenge, Javier
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Gramíneas Forrajeras
Gramineas
Conservación de Suelos
Zona Árida
Feed Grasses
Grasses
Soil Conservation
Arid Zones
Poa Ligularis
Pappostipa Speciosa
Región Patagónica
topic Gramíneas Forrajeras
Gramineas
Conservación de Suelos
Zona Árida
Feed Grasses
Grasses
Soil Conservation
Arid Zones
Poa Ligularis
Pappostipa Speciosa
Región Patagónica
dc.description.none.fl_txt_mv In Patagonia, arid and semiarid lands are being affected both by inappropriate management practices, which are leading to degradation, and by volcanic activity, whose effects are still unclear. This study aimed to test whether superficial deposition of volcanic tephra could benefit two of the most prominent Patagonian forage grass species (Poa ligularis and Pappostipa speciosa var. speciosa). Pots with P. ligularis and P. speciosa were kept under wet (W) and dry (D) conditions in the presence (T+) or absence (T−) of tephra for 105 days, and then were all well-watered. We determined the effects of tephra on soil water retention and conservation, soil moisture content (% v/v), plant growth, stomatal conductance (gs), and gs recovery capacity. The water regime significantly affected both species performance and gs. The presence of tephra increased soil water conservation, soil moisture content in wet conditions, and P. ligularis gs in wet conditions, and decreased senescence in dry conditions (9% in P. ligularis and 16% in P. speciosa). The presence of tephra allowed roots to grow in 8/10 and 2/10 pots in W conditions for P. ligularis and P. speciosa, respectively, and in only 1/10 pots in D conditions, only for P. ligularis. Tephra was also associated with gs recovery after dry conditions. Poa ligularis was more positively affected by tephra than P. speciosa, probably because P. ligularis has higher phenotypic plasticity. The positive effects of tephra may increase the resilience and resistance of P. speciosa and P. ligularis to periods of water shortage.
Estación Experimental Agropecuaria Bariloche
Fil: Edwards, Priscila. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Varela, Santiago Agustín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Barilohe. Área Sistemas Forestales. Grupo de Ecología Forestal; Argentina
Fil: Lopez, Dardo Ruben. Instituto Nacional de Tecnología Agropecuaria (INTA). Estacion Experimental Agropecuaria Manfredi. Estación Forestal Villa Dolores; Argentina
Fil: Willems, Priscila Mabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
Fil: Lopez, Aldana Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gyenge, Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Tandil; Argentina
description In Patagonia, arid and semiarid lands are being affected both by inappropriate management practices, which are leading to degradation, and by volcanic activity, whose effects are still unclear. This study aimed to test whether superficial deposition of volcanic tephra could benefit two of the most prominent Patagonian forage grass species (Poa ligularis and Pappostipa speciosa var. speciosa). Pots with P. ligularis and P. speciosa were kept under wet (W) and dry (D) conditions in the presence (T+) or absence (T−) of tephra for 105 days, and then were all well-watered. We determined the effects of tephra on soil water retention and conservation, soil moisture content (% v/v), plant growth, stomatal conductance (gs), and gs recovery capacity. The water regime significantly affected both species performance and gs. The presence of tephra increased soil water conservation, soil moisture content in wet conditions, and P. ligularis gs in wet conditions, and decreased senescence in dry conditions (9% in P. ligularis and 16% in P. speciosa). The presence of tephra allowed roots to grow in 8/10 and 2/10 pots in W conditions for P. ligularis and P. speciosa, respectively, and in only 1/10 pots in D conditions, only for P. ligularis. Tephra was also associated with gs recovery after dry conditions. Poa ligularis was more positively affected by tephra than P. speciosa, probably because P. ligularis has higher phenotypic plasticity. The positive effects of tephra may increase the resilience and resistance of P. speciosa and P. ligularis to periods of water shortage.
publishDate 2017
dc.date.none.fl_str_mv 2017-08-31
2019-04-24T13:22:29Z
2019-04-24T13:22:29Z
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/20.500.12123/4965
https://www.tandfonline.com/doi/abs/10.1080/15324982.2017.1349209
1532-4982
1532-4990
https://doi.org/10.1080/15324982.2017.1349209
url http://hdl.handle.net/20.500.12123/4965
https://www.tandfonline.com/doi/abs/10.1080/15324982.2017.1349209
https://doi.org/10.1080/15324982.2017.1349209
identifier_str_mv 1532-4982
1532-4990
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.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv Arid Land Research and Management 31 (4) : 373-387. (2017)
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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score 12.559606

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