Plant growth and survival of five introduced and two native/naturalized perennial grass genotypes exposed to two defoliation managements in arid Argentina

Autores
Torres, Yanina Alejandra; Busso, Carlos Alberto; Montenegro, O. A.; Ithurrart, Leticia Soledad; Giorgetti, H. D.; Rodriguez, G. D.; Bentivegna, Diego Javier; Brevedan, Roberto; Fernández, Osvaldo Alberto; Mujica, María de la Merced; Baioni, S. S.; Entio, Lisandro José; Fioretti, M.; Tucat, Guillermo
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The field performance of the native Pappophorum vaginatum, the naturalized Eragrostis curvula and various cultivars of the introduced Achnatherum hymenoides and Leymus cinereus was evaluated as potential forage resources in rangelands of arid Argentina during the warm seasons of 2007/2008 and 2008/2009. Plants of these grass species, obtained from seeds, were transplanted to the field in 2006, when they were 1 year old. During the study years, there were two defoliation managements: plants of all study genotypes either remained undefoliated (controls) or were defoliated twice a year during spring at 5 cm stubble height. Despite tiller number being lower (P < 0·05) on defoliated than on undefoliated plants, and total leaf length per unit basal area being similar (P > 0·05) between defoliation managements by mid-spring, there were no differences (P > 0·05) in dry weight production between defoliated and undefoliated plants in all genotypes at the end of the second growing season. Plants of one or more of the introduced genotypes showed a similar (P > 0·05) or greater (P < 0·05), but not lower, tiller number per plant and per square centimetre, daughter tiller production, total leaf length and dry weight production per unit basal area than the native species at the end of the first and/or second growing seasons. These morphological variables were similar (P > 0·05) or greater (P < 0·05) in the native than in the naturalized genotype. Plant survival, however, was lower (P < 0·05, overall mean = 20%) in the introduced than in the native (>70%) or naturalized (>39%) genotypes at the end of the first or second growing seasons.
Facultad de Ciencias Agrarias y Forestales
Materia
Ciencias Agrarias
Achnatherum hymenoides
Eragrostis
Leymus cinereus
Pappophorum vaginatum
Plant demography
Plant growth
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/100919

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oai_identifier_str oai:sedici.unlp.edu.ar:10915/100919
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Plant growth and survival of five introduced and two native/naturalized perennial grass genotypes exposed to two defoliation managements in arid ArgentinaTorres, Yanina AlejandraBusso, Carlos AlbertoMontenegro, O. A.Ithurrart, Leticia SoledadGiorgetti, H. D.Rodriguez, G. D.Bentivegna, Diego JavierBrevedan, RobertoFernández, Osvaldo AlbertoMujica, María de la MercedBaioni, S. S.Entio, Lisandro JoséFioretti, M.Tucat, GuillermoCiencias AgrariasAchnatherum hymenoidesEragrostisLeymus cinereusPappophorum vaginatumPlant demographyPlant growthThe field performance of the native Pappophorum vaginatum, the naturalized Eragrostis curvula and various cultivars of the introduced Achnatherum hymenoides and Leymus cinereus was evaluated as potential forage resources in rangelands of arid Argentina during the warm seasons of 2007/2008 and 2008/2009. Plants of these grass species, obtained from seeds, were transplanted to the field in 2006, when they were 1 year old. During the study years, there were two defoliation managements: plants of all study genotypes either remained undefoliated (controls) or were defoliated twice a year during spring at 5 cm stubble height. Despite tiller number being lower (P < 0·05) on defoliated than on undefoliated plants, and total leaf length per unit basal area being similar (P > 0·05) between defoliation managements by mid-spring, there were no differences (P > 0·05) in dry weight production between defoliated and undefoliated plants in all genotypes at the end of the second growing season. Plants of one or more of the introduced genotypes showed a similar (P > 0·05) or greater (P < 0·05), but not lower, tiller number per plant and per square centimetre, daughter tiller production, total leaf length and dry weight production per unit basal area than the native species at the end of the first and/or second growing seasons. These morphological variables were similar (P > 0·05) or greater (P < 0·05) in the native than in the naturalized genotype. Plant survival, however, was lower (P < 0·05, overall mean = 20%) in the introduced than in the native (>70%) or naturalized (>39%) genotypes at the end of the first or second growing seasons.Facultad de Ciencias Agrarias y Forestales2013-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf580-595http://sedici.unlp.edu.ar/handle/10915/100919enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/12711info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/gfs.12071/abstractinfo:eu-repo/semantics/altIdentifier/issn/0142-5242info:eu-repo/semantics/altIdentifier/doi/10.1111/gfs.12071info:eu-repo/semantics/altIdentifier/hdl/11336/12711info: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)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:21:01Zoai:sedici.unlp.edu.ar:10915/100919Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:21:01.608SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Plant growth and survival of five introduced and two native/naturalized perennial grass genotypes exposed to two defoliation managements in arid Argentina
title Plant growth and survival of five introduced and two native/naturalized perennial grass genotypes exposed to two defoliation managements in arid Argentina
spellingShingle Plant growth and survival of five introduced and two native/naturalized perennial grass genotypes exposed to two defoliation managements in arid Argentina
Torres, Yanina Alejandra
Ciencias Agrarias
Achnatherum hymenoides
Eragrostis
Leymus cinereus
Pappophorum vaginatum
Plant demography
Plant growth
title_short Plant growth and survival of five introduced and two native/naturalized perennial grass genotypes exposed to two defoliation managements in arid Argentina
title_full Plant growth and survival of five introduced and two native/naturalized perennial grass genotypes exposed to two defoliation managements in arid Argentina
title_fullStr Plant growth and survival of five introduced and two native/naturalized perennial grass genotypes exposed to two defoliation managements in arid Argentina
title_full_unstemmed Plant growth and survival of five introduced and two native/naturalized perennial grass genotypes exposed to two defoliation managements in arid Argentina
title_sort Plant growth and survival of five introduced and two native/naturalized perennial grass genotypes exposed to two defoliation managements in arid Argentina
dc.creator.none.fl_str_mv Torres, Yanina Alejandra
Busso, Carlos Alberto
Montenegro, O. A.
Ithurrart, Leticia Soledad
Giorgetti, H. D.
Rodriguez, G. D.
Bentivegna, Diego Javier
Brevedan, Roberto
Fernández, Osvaldo Alberto
Mujica, María de la Merced
Baioni, S. S.
Entio, Lisandro José
Fioretti, M.
Tucat, Guillermo
author Torres, Yanina Alejandra
author_facet Torres, Yanina Alejandra
Busso, Carlos Alberto
Montenegro, O. A.
Ithurrart, Leticia Soledad
Giorgetti, H. D.
Rodriguez, G. D.
Bentivegna, Diego Javier
Brevedan, Roberto
Fernández, Osvaldo Alberto
Mujica, María de la Merced
Baioni, S. S.
Entio, Lisandro José
Fioretti, M.
Tucat, Guillermo
author_role author
author2 Busso, Carlos Alberto
Montenegro, O. A.
Ithurrart, Leticia Soledad
Giorgetti, H. D.
Rodriguez, G. D.
Bentivegna, Diego Javier
Brevedan, Roberto
Fernández, Osvaldo Alberto
Mujica, María de la Merced
Baioni, S. S.
Entio, Lisandro José
Fioretti, M.
Tucat, Guillermo
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Achnatherum hymenoides
Eragrostis
Leymus cinereus
Pappophorum vaginatum
Plant demography
Plant growth
topic Ciencias Agrarias
Achnatherum hymenoides
Eragrostis
Leymus cinereus
Pappophorum vaginatum
Plant demography
Plant growth
dc.description.none.fl_txt_mv The field performance of the native Pappophorum vaginatum, the naturalized Eragrostis curvula and various cultivars of the introduced Achnatherum hymenoides and Leymus cinereus was evaluated as potential forage resources in rangelands of arid Argentina during the warm seasons of 2007/2008 and 2008/2009. Plants of these grass species, obtained from seeds, were transplanted to the field in 2006, when they were 1 year old. During the study years, there were two defoliation managements: plants of all study genotypes either remained undefoliated (controls) or were defoliated twice a year during spring at 5 cm stubble height. Despite tiller number being lower (P < 0·05) on defoliated than on undefoliated plants, and total leaf length per unit basal area being similar (P > 0·05) between defoliation managements by mid-spring, there were no differences (P > 0·05) in dry weight production between defoliated and undefoliated plants in all genotypes at the end of the second growing season. Plants of one or more of the introduced genotypes showed a similar (P > 0·05) or greater (P < 0·05), but not lower, tiller number per plant and per square centimetre, daughter tiller production, total leaf length and dry weight production per unit basal area than the native species at the end of the first and/or second growing seasons. These morphological variables were similar (P > 0·05) or greater (P < 0·05) in the native than in the naturalized genotype. Plant survival, however, was lower (P < 0·05, overall mean = 20%) in the introduced than in the native (>70%) or naturalized (>39%) genotypes at the end of the first or second growing seasons.
Facultad de Ciencias Agrarias y Forestales
description The field performance of the native Pappophorum vaginatum, the naturalized Eragrostis curvula and various cultivars of the introduced Achnatherum hymenoides and Leymus cinereus was evaluated as potential forage resources in rangelands of arid Argentina during the warm seasons of 2007/2008 and 2008/2009. Plants of these grass species, obtained from seeds, were transplanted to the field in 2006, when they were 1 year old. During the study years, there were two defoliation managements: plants of all study genotypes either remained undefoliated (controls) or were defoliated twice a year during spring at 5 cm stubble height. Despite tiller number being lower (P < 0·05) on defoliated than on undefoliated plants, and total leaf length per unit basal area being similar (P > 0·05) between defoliation managements by mid-spring, there were no differences (P > 0·05) in dry weight production between defoliated and undefoliated plants in all genotypes at the end of the second growing season. Plants of one or more of the introduced genotypes showed a similar (P > 0·05) or greater (P < 0·05), but not lower, tiller number per plant and per square centimetre, daughter tiller production, total leaf length and dry weight production per unit basal area than the native species at the end of the first and/or second growing seasons. These morphological variables were similar (P > 0·05) or greater (P < 0·05) in the native than in the naturalized genotype. Plant survival, however, was lower (P < 0·05, overall mean = 20%) in the introduced than in the native (>70%) or naturalized (>39%) genotypes at the end of the first or second growing seasons.
publishDate 2013
dc.date.none.fl_str_mv 2013-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/100919
url http://sedici.unlp.edu.ar/handle/10915/100919
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/12711
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/gfs.12071/abstract
info:eu-repo/semantics/altIdentifier/issn/0142-5242
info:eu-repo/semantics/altIdentifier/doi/10.1111/gfs.12071
info:eu-repo/semantics/altIdentifier/hdl/11336/12711
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
580-595
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reponame_str SEDICI (UNLP)
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instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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