Water stress and temperature effects on germination and early seedling growth of <i>Digitaria eriantha</i>

Autores
Brevedan, Roberto; Busso, Carlos Alberto; Fioretti, M. N.; Toribio, M. B.; Baioni, S. S.; Torres, Yanina Alejandra; Fernández, Osvaldo Alberto; Giorgetti, H. D.; Bentivegna, Diego Javier; Entio, Lisandro José; Ithurrart, Leticia Soledad; Montenegro, O.; Mujica, María de la Merced; Rodríguez, G.; Tucat, Guillermo
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study focused on the two major processes critical for plant establishment: Seed germination and seedling survival. We determined the effects of (1) water stress and temperature on the germination, and (2) water stress on early seedling growth of Digitaria eriantha cv ‘Irene’. Seeds harvested in 2007 were used for temperature studies, and those coming from 2006 and 2007 for water stress studies. In 2009, viability decreased by 65.4% from 2006 to 2007. During the first twenty-four hours, germination was more than 50% at constant (30 or 35°C) than alternating (10/30 or 10/35°C) temperatures, although total germination was about 80% for all temperature treatments. Polyethylene glycol 8000 was used to impose water stress conditions. Germination percentages and coefficients of velocity decreased with decreasing water potentials. Early seedling growth was smaller at lower water potentials. D. eriantha cv ‘Irene’ appeared to germinate within a wide range of temperatures, but it varied greatly in germination response to water potentials. Results suggest that this species could be planted in late spring-early summer, when seedbed temperatures are increasing and soil moisture might still be adequate.
Facultad de Ciencias Agrarias y Forestales
Materia
Ciencias Agrarias
Perennial grasses
Rangelands
Seeds
Forage
Arid zones
Argentina
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:10915/99956

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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Water stress and temperature effects on germination and early seedling growth of <i>Digitaria eriantha</i>Brevedan, RobertoBusso, Carlos AlbertoFioretti, M. N.Toribio, M. B.Baioni, S. S.Torres, Yanina AlejandraFernández, Osvaldo AlbertoGiorgetti, H. D.Bentivegna, Diego JavierEntio, Lisandro JoséIthurrart, Leticia SoledadMontenegro, O.Mujica, María de la MercedRodríguez, G.Tucat, GuillermoCiencias AgrariasPerennial grassesRangelandsSeedsForageArid zonesArgentinaThis study focused on the two major processes critical for plant establishment: Seed germination and seedling survival. We determined the effects of (1) water stress and temperature on the germination, and (2) water stress on early seedling growth of Digitaria eriantha cv ‘Irene’. Seeds harvested in 2007 were used for temperature studies, and those coming from 2006 and 2007 for water stress studies. In 2009, viability decreased by 65.4% from 2006 to 2007. During the first twenty-four hours, germination was more than 50% at constant (30 or 35°C) than alternating (10/30 or 10/35°C) temperatures, although total germination was about 80% for all temperature treatments. Polyethylene glycol 8000 was used to impose water stress conditions. Germination percentages and coefficients of velocity decreased with decreasing water potentials. Early seedling growth was smaller at lower water potentials. D. eriantha cv ‘Irene’ appeared to germinate within a wide range of temperatures, but it varied greatly in germination response to water potentials. Results suggest that this species could be planted in late spring-early summer, when seedbed temperatures are increasing and soil moisture might still be adequate.Facultad de Ciencias Agrarias y Forestales2013-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf4345-4353http://sedici.unlp.edu.ar/handle/10915/99956enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/13201info:eu-repo/semantics/altIdentifier/url/http://www.academicjournals.org/journal/AJAR/article-abstract/E71627B36289info:eu-repo/semantics/altIdentifier/issn/1991-637Xinfo:eu-repo/semantics/altIdentifier/hdl/11336/13201info: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:UNLP2025-09-29T11:20:55Zoai:sedici.unlp.edu.ar:10915/99956Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:20:55.622SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Water stress and temperature effects on germination and early seedling growth of <i>Digitaria eriantha</i>
title Water stress and temperature effects on germination and early seedling growth of <i>Digitaria eriantha</i>
spellingShingle Water stress and temperature effects on germination and early seedling growth of <i>Digitaria eriantha</i>
Brevedan, Roberto
Ciencias Agrarias
Perennial grasses
Rangelands
Seeds
Forage
Arid zones
Argentina
title_short Water stress and temperature effects on germination and early seedling growth of <i>Digitaria eriantha</i>
title_full Water stress and temperature effects on germination and early seedling growth of <i>Digitaria eriantha</i>
title_fullStr Water stress and temperature effects on germination and early seedling growth of <i>Digitaria eriantha</i>
title_full_unstemmed Water stress and temperature effects on germination and early seedling growth of <i>Digitaria eriantha</i>
title_sort Water stress and temperature effects on germination and early seedling growth of <i>Digitaria eriantha</i>
dc.creator.none.fl_str_mv Brevedan, Roberto
Busso, Carlos Alberto
Fioretti, M. N.
Toribio, M. B.
Baioni, S. S.
Torres, Yanina Alejandra
Fernández, Osvaldo Alberto
Giorgetti, H. D.
Bentivegna, Diego Javier
Entio, Lisandro José
Ithurrart, Leticia Soledad
Montenegro, O.
Mujica, María de la Merced
Rodríguez, G.
Tucat, Guillermo
author Brevedan, Roberto
author_facet Brevedan, Roberto
Busso, Carlos Alberto
Fioretti, M. N.
Toribio, M. B.
Baioni, S. S.
Torres, Yanina Alejandra
Fernández, Osvaldo Alberto
Giorgetti, H. D.
Bentivegna, Diego Javier
Entio, Lisandro José
Ithurrart, Leticia Soledad
Montenegro, O.
Mujica, María de la Merced
Rodríguez, G.
Tucat, Guillermo
author_role author
author2 Busso, Carlos Alberto
Fioretti, M. N.
Toribio, M. B.
Baioni, S. S.
Torres, Yanina Alejandra
Fernández, Osvaldo Alberto
Giorgetti, H. D.
Bentivegna, Diego Javier
Entio, Lisandro José
Ithurrart, Leticia Soledad
Montenegro, O.
Mujica, María de la Merced
Rodríguez, G.
Tucat, Guillermo
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Perennial grasses
Rangelands
Seeds
Forage
Arid zones
Argentina
topic Ciencias Agrarias
Perennial grasses
Rangelands
Seeds
Forage
Arid zones
Argentina
dc.description.none.fl_txt_mv This study focused on the two major processes critical for plant establishment: Seed germination and seedling survival. We determined the effects of (1) water stress and temperature on the germination, and (2) water stress on early seedling growth of Digitaria eriantha cv ‘Irene’. Seeds harvested in 2007 were used for temperature studies, and those coming from 2006 and 2007 for water stress studies. In 2009, viability decreased by 65.4% from 2006 to 2007. During the first twenty-four hours, germination was more than 50% at constant (30 or 35°C) than alternating (10/30 or 10/35°C) temperatures, although total germination was about 80% for all temperature treatments. Polyethylene glycol 8000 was used to impose water stress conditions. Germination percentages and coefficients of velocity decreased with decreasing water potentials. Early seedling growth was smaller at lower water potentials. D. eriantha cv ‘Irene’ appeared to germinate within a wide range of temperatures, but it varied greatly in germination response to water potentials. Results suggest that this species could be planted in late spring-early summer, when seedbed temperatures are increasing and soil moisture might still be adequate.
Facultad de Ciencias Agrarias y Forestales
description This study focused on the two major processes critical for plant establishment: Seed germination and seedling survival. We determined the effects of (1) water stress and temperature on the germination, and (2) water stress on early seedling growth of Digitaria eriantha cv ‘Irene’. Seeds harvested in 2007 were used for temperature studies, and those coming from 2006 and 2007 for water stress studies. In 2009, viability decreased by 65.4% from 2006 to 2007. During the first twenty-four hours, germination was more than 50% at constant (30 or 35°C) than alternating (10/30 or 10/35°C) temperatures, although total germination was about 80% for all temperature treatments. Polyethylene glycol 8000 was used to impose water stress conditions. Germination percentages and coefficients of velocity decreased with decreasing water potentials. Early seedling growth was smaller at lower water potentials. D. eriantha cv ‘Irene’ appeared to germinate within a wide range of temperatures, but it varied greatly in germination response to water potentials. Results suggest that this species could be planted in late spring-early summer, when seedbed temperatures are increasing and soil moisture might still be adequate.
publishDate 2013
dc.date.none.fl_str_mv 2013-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/99956
url http://sedici.unlp.edu.ar/handle/10915/99956
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/11336/13201
info:eu-repo/semantics/altIdentifier/url/http://www.academicjournals.org/journal/AJAR/article-abstract/E71627B36289
info:eu-repo/semantics/altIdentifier/issn/1991-637X
info:eu-repo/semantics/altIdentifier/hdl/11336/13201
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
4345-4353
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
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instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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