Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes

Autores
Ruolo, Maria Soledad; Perez, Hector Eduardo; Rodriguez, Adriana Mabel
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
To study the effect of different defoliation regimes on light interception, forage yield, spring regrowth and quality of one of the most expanded species in this region, Chloris gayana, we evaluate combinations of two defoliation frequencies (300 and 500 GDD) and two intensities (1 and 3 green stubble leaves) in a controlled experiment that comprised 1500 GDD during summer and autumn. Defoliation frequency had a greater effect on the evaluated traits than defoliation intensity. Forage yield was lower under the higher (300 GDD) than under the lower (500 GDD) frequency defoliation (6699 vs. 8961 kg DM/ha, respectively), but forage showed higher leaf percentage (69.8 vs. 53.2%) and better nutritional value at 300 GDD (17.4 vs. 15.6%, 64.1 vs. 62.1%, 60.9 vs. 63.2% and 67.7 vs. 62.4% of crude protein, dry matter digestibility, neutral detergent fiber and its digestibility, respectively) than at 500 GDD. Spring tiller density was not affected by any of the defoliation regimes. Better livestock performance could be obtained by grazing at 300 GDD, but considering the whole growing season, more digestible dry matter is likely to be produced under defoliations every 500 GDD than every 300 GDD.
Instituto de Fisiología y Recursos Genéticos Vegetales
Fil: Ruolo, Maria Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Ruolo, Maria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Unidad de Estudios Agropecuarios (UDEA); Argentina
Fil: Ruolo, Maria Soledad. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias. Departamento de Producción Animal. Cátedra de Forrajes y manejo de pasturas; Argentina
Fil: Perez, Hector Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina
Fil: Rodriguez, Adriana Mabel. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal. Cátedra de Forrajicultura; Argentina
Fuente
New Zealand Journal of Agricultural Research (2022). (Published online: 22 Feb 2022)
Materia
Chloris Gayana
Productividad
Defoliación
Productivity
Digestibility
Crude Protein
Defoliation
Digestibilidad
Proteina Buta
Rhodes Grass
Defoliation Management
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
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spelling Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimesRuolo, Maria SoledadPerez, Hector EduardoRodriguez, Adriana MabelChloris GayanaProductividadDefoliaciónProductivityDigestibilityCrude ProteinDefoliationDigestibilidadProteina ButaRhodes GrassDefoliation ManagementTo study the effect of different defoliation regimes on light interception, forage yield, spring regrowth and quality of one of the most expanded species in this region, Chloris gayana, we evaluate combinations of two defoliation frequencies (300 and 500 GDD) and two intensities (1 and 3 green stubble leaves) in a controlled experiment that comprised 1500 GDD during summer and autumn. Defoliation frequency had a greater effect on the evaluated traits than defoliation intensity. Forage yield was lower under the higher (300 GDD) than under the lower (500 GDD) frequency defoliation (6699 vs. 8961 kg DM/ha, respectively), but forage showed higher leaf percentage (69.8 vs. 53.2%) and better nutritional value at 300 GDD (17.4 vs. 15.6%, 64.1 vs. 62.1%, 60.9 vs. 63.2% and 67.7 vs. 62.4% of crude protein, dry matter digestibility, neutral detergent fiber and its digestibility, respectively) than at 500 GDD. Spring tiller density was not affected by any of the defoliation regimes. Better livestock performance could be obtained by grazing at 300 GDD, but considering the whole growing season, more digestible dry matter is likely to be produced under defoliations every 500 GDD than every 300 GDD.Instituto de Fisiología y Recursos Genéticos VegetalesFil: Ruolo, Maria Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil: Ruolo, Maria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Unidad de Estudios Agropecuarios (UDEA); ArgentinaFil: Ruolo, Maria Soledad. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias. Departamento de Producción Animal. Cátedra de Forrajes y manejo de pasturas; ArgentinaFil: Perez, Hector Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; ArgentinaFil: Rodriguez, Adriana Mabel. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal. Cátedra de Forrajicultura; ArgentinaTaylor and Francis2022-03-10T10:20:25Z2022-03-10T10:20:25Z2022-02-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/11357https://www.tandfonline.com/doi/abs/10.1080/00288233.2022.2038212?src=&journalCode=tnza200028-82331175-8775 (online)https://doi.org/10.1080/00288233.2022.2038212New Zealand Journal of Agricultural Research (2022). (Published online: 22 Feb 2022)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:45:29Zoai:localhost:20.500.12123/11357instacron: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 13:45:30.094INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes
title Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes
spellingShingle Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes
Ruolo, Maria Soledad
Chloris Gayana
Productividad
Defoliación
Productivity
Digestibility
Crude Protein
Defoliation
Digestibilidad
Proteina Buta
Rhodes Grass
Defoliation Management
title_short Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes
title_full Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes
title_fullStr Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes
title_full_unstemmed Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes
title_sort Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes
dc.creator.none.fl_str_mv Ruolo, Maria Soledad
Perez, Hector Eduardo
Rodriguez, Adriana Mabel
author Ruolo, Maria Soledad
author_facet Ruolo, Maria Soledad
Perez, Hector Eduardo
Rodriguez, Adriana Mabel
author_role author
author2 Perez, Hector Eduardo
Rodriguez, Adriana Mabel
author2_role author
author
dc.subject.none.fl_str_mv Chloris Gayana
Productividad
Defoliación
Productivity
Digestibility
Crude Protein
Defoliation
Digestibilidad
Proteina Buta
Rhodes Grass
Defoliation Management
topic Chloris Gayana
Productividad
Defoliación
Productivity
Digestibility
Crude Protein
Defoliation
Digestibilidad
Proteina Buta
Rhodes Grass
Defoliation Management
dc.description.none.fl_txt_mv To study the effect of different defoliation regimes on light interception, forage yield, spring regrowth and quality of one of the most expanded species in this region, Chloris gayana, we evaluate combinations of two defoliation frequencies (300 and 500 GDD) and two intensities (1 and 3 green stubble leaves) in a controlled experiment that comprised 1500 GDD during summer and autumn. Defoliation frequency had a greater effect on the evaluated traits than defoliation intensity. Forage yield was lower under the higher (300 GDD) than under the lower (500 GDD) frequency defoliation (6699 vs. 8961 kg DM/ha, respectively), but forage showed higher leaf percentage (69.8 vs. 53.2%) and better nutritional value at 300 GDD (17.4 vs. 15.6%, 64.1 vs. 62.1%, 60.9 vs. 63.2% and 67.7 vs. 62.4% of crude protein, dry matter digestibility, neutral detergent fiber and its digestibility, respectively) than at 500 GDD. Spring tiller density was not affected by any of the defoliation regimes. Better livestock performance could be obtained by grazing at 300 GDD, but considering the whole growing season, more digestible dry matter is likely to be produced under defoliations every 500 GDD than every 300 GDD.
Instituto de Fisiología y Recursos Genéticos Vegetales
Fil: Ruolo, Maria Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Ruolo, Maria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Unidad de Estudios Agropecuarios (UDEA); Argentina
Fil: Ruolo, Maria Soledad. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias. Departamento de Producción Animal. Cátedra de Forrajes y manejo de pasturas; Argentina
Fil: Perez, Hector Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina
Fil: Rodriguez, Adriana Mabel. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal. Cátedra de Forrajicultura; Argentina
description To study the effect of different defoliation regimes on light interception, forage yield, spring regrowth and quality of one of the most expanded species in this region, Chloris gayana, we evaluate combinations of two defoliation frequencies (300 and 500 GDD) and two intensities (1 and 3 green stubble leaves) in a controlled experiment that comprised 1500 GDD during summer and autumn. Defoliation frequency had a greater effect on the evaluated traits than defoliation intensity. Forage yield was lower under the higher (300 GDD) than under the lower (500 GDD) frequency defoliation (6699 vs. 8961 kg DM/ha, respectively), but forage showed higher leaf percentage (69.8 vs. 53.2%) and better nutritional value at 300 GDD (17.4 vs. 15.6%, 64.1 vs. 62.1%, 60.9 vs. 63.2% and 67.7 vs. 62.4% of crude protein, dry matter digestibility, neutral detergent fiber and its digestibility, respectively) than at 500 GDD. Spring tiller density was not affected by any of the defoliation regimes. Better livestock performance could be obtained by grazing at 300 GDD, but considering the whole growing season, more digestible dry matter is likely to be produced under defoliations every 500 GDD than every 300 GDD.
publishDate 2022
dc.date.none.fl_str_mv 2022-03-10T10:20:25Z
2022-03-10T10:20:25Z
2022-02-22
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/20.500.12123/11357
https://www.tandfonline.com/doi/abs/10.1080/00288233.2022.2038212?src=&journalCode=tnza20
0028-8233
1175-8775 (online)
https://doi.org/10.1080/00288233.2022.2038212
url http://hdl.handle.net/20.500.12123/11357
https://www.tandfonline.com/doi/abs/10.1080/00288233.2022.2038212?src=&journalCode=tnza20
https://doi.org/10.1080/00288233.2022.2038212
identifier_str_mv 0028-8233
1175-8775 (online)
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 and Francis
publisher.none.fl_str_mv Taylor and Francis
dc.source.none.fl_str_mv New Zealand Journal of Agricultural Research (2022). (Published online: 22 Feb 2022)
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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