Forage productivity and morphogenesis of Mesosetum chaseae under defoliation frequency

Detalhes bibliográficos
Autor(a) principal: Costa, Newton de Lucena
Data de Publicação: 2022
Outros Autores: Magalhães, João Avelar, Rodrigues, Braz Henrique Nunes, Santos, Francisco José de Seixas
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/32473
Resumo: The effect of defoliation frequency (14, 21, 28, 35, 42, 49 and 56 days) on forage production and morphogenic and structural characteristics of Mesosetum chaseae (Luces) was evaluated under natural field conditions during the dry season, in the savannas of Roraima. The reduction in pasture defoliation frequency resulted in higher green dry matter (GDM) yields, number of tillers plant-1, number of leaves tiller-1, tiller leaf area, leaf senescence rate and average leaf size. The relationship between defoliation frequency and GDM production was quadratic, with the maximum value estimated at 53.8 days of regrowth. Absolute rates of growth and leaf appearance and expansion were inversely proportional to defoliation frequencies. The highest rate of leaf expansion was obtained at 49.7 days of regrowth. Aiming to reconcile forage productivity with the optimization of the morphogenic and structural characteristics of the grass, the most appropriate period of use of its pastures is between 42 and 49 days of regrowth.
id UNIFEI_91441fe30e65ce0891e6d147eddf5167
oai_identifier_str oai:ojs.pkp.sfu.ca:article/32473
network_acronym_str UNIFEI
network_name_str Research, Society and Development
repository_id_str
spelling Forage productivity and morphogenesis of Mesosetum chaseae under defoliation frequencyProductividad de forraje y morfogénesis de Mesosetum chaseae bajo frecuencias de defoliaciónProdutividade de forragem e morfogênese de Mesosetum chaseae sob frequências de desfolhaçãoFolhasMatéria secaPerfilhamentoSenescência.HojasMateria secaMacollaSenescencia. LeavesDry matterTillerSenescence.The effect of defoliation frequency (14, 21, 28, 35, 42, 49 and 56 days) on forage production and morphogenic and structural characteristics of Mesosetum chaseae (Luces) was evaluated under natural field conditions during the dry season, in the savannas of Roraima. The reduction in pasture defoliation frequency resulted in higher green dry matter (GDM) yields, number of tillers plant-1, number of leaves tiller-1, tiller leaf area, leaf senescence rate and average leaf size. The relationship between defoliation frequency and GDM production was quadratic, with the maximum value estimated at 53.8 days of regrowth. Absolute rates of growth and leaf appearance and expansion were inversely proportional to defoliation frequencies. The highest rate of leaf expansion was obtained at 49.7 days of regrowth. Aiming to reconcile forage productivity with the optimization of the morphogenic and structural characteristics of the grass, the most appropriate period of use of its pastures is between 42 and 49 days of regrowth.Se evaluó el efecto de la frecuencia de defoliación (14, 21, 28, 35, 42, 49 y 56 días) sobre la producción de forraje y las características morfogénicas y estructurales de Mesosetum chaseae (Luces) en condiciones naturales de campo durante la época poco lluviosa, en las sabanas de Roraima. La reducción en la frecuencia de defoliación de los pastos resultó en mayores rendimientos de materia seca verde (MSV), número de macollas planta-1, número de hojas macollas-1, área foliar de macolla, tasa de senescencia de hojas y tamaño promedio de hoja. La relación entre la frecuencia de defoliación y la producción de MSV fue cuadrática, con el valor máximo estimado en 53,8 días de rebrote. Las tasas absolutas de crecimiento y aparición y expansión de hojas fueron inversamente proporcionales a las frecuencias de defoliación. La mayor tasa de expansión foliar se obtuvo a los 49,7 días de rebrote. Con el objetivo de conciliar la productividad forrajera con la optimización de las características morfogénicas y estructurales de la gramínea, el período más adecuado de uso de sus pastos se encuentra entre los 42 y 49 días de rebrote.O efeito da frequência de desfolhação (14, 21, 28, 35, 42, 49 e 56 dias) sobre a produção de forragem e características morfogênicas e estruturais de Mesosetum chaseae (Luces) foi avaliado em condições naturais de campo, durante o período seco, nos cerrados de Roraima. A redução na frequência de desfolhação da pastagem resultou em maiores rendimentos de matéria seca verde (MSV), número de perfilhos planta-1, número de folhas perfilho-1, área e taxa de senescência foliar e tamanho médio de folhas. A relação entre frequência de desfolhação e a produção de MSV foi quadrática, sendo o máximo valor estimado aos 53,8 dias de rebrota. As taxas absolutas de crescimento e de aparecimento e expansão foliar foram inversamente proporcionais às frequências de desfolhação. A maior taxa de expansão foliar foi obtida aos 49,7 dias de rebrota. Visando conciliar produtividade de forragem com a otimização das características morfogênicas e estruturais da gramínea, o período de utilização mais adequado de suas pastagens situa-se entre 42 e 49 dias de rebrota.Research, Society and Development2022-07-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/3247310.33448/rsd-v11i10.32473Research, Society and Development; Vol. 11 No. 10; e127111032473Research, Society and Development; Vol. 11 Núm. 10; e127111032473Research, Society and Development; v. 11 n. 10; e1271110324732525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/32473/27615Copyright (c) 2022 Newton de Lucena Costa; João Avelar Magalhães; Braz Henrique Nunes Rodrigues; Francisco José de Seixas Santoshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessCosta, Newton de LucenaMagalhães, João Avelar Rodrigues, Braz Henrique Nunes Santos, Francisco José de Seixas 2022-08-12T22:23:03Zoai:ojs.pkp.sfu.ca:article/32473Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:48:28.402985Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Forage productivity and morphogenesis of Mesosetum chaseae under defoliation frequency
Productividad de forraje y morfogénesis de Mesosetum chaseae bajo frecuencias de defoliación
Produtividade de forragem e morfogênese de Mesosetum chaseae sob frequências de desfolhação
title Forage productivity and morphogenesis of Mesosetum chaseae under defoliation frequency
spellingShingle Forage productivity and morphogenesis of Mesosetum chaseae under defoliation frequency
Costa, Newton de Lucena
Folhas
Matéria seca
Perfilhamento
Senescência.
Hojas
Materia seca
Macolla
Senescencia.
Leaves
Dry matter
Tiller
Senescence.
title_short Forage productivity and morphogenesis of Mesosetum chaseae under defoliation frequency
title_full Forage productivity and morphogenesis of Mesosetum chaseae under defoliation frequency
title_fullStr Forage productivity and morphogenesis of Mesosetum chaseae under defoliation frequency
title_full_unstemmed Forage productivity and morphogenesis of Mesosetum chaseae under defoliation frequency
title_sort Forage productivity and morphogenesis of Mesosetum chaseae under defoliation frequency
author Costa, Newton de Lucena
author_facet Costa, Newton de Lucena
Magalhães, João Avelar
Rodrigues, Braz Henrique Nunes
Santos, Francisco José de Seixas
author_role author
author2 Magalhães, João Avelar
Rodrigues, Braz Henrique Nunes
Santos, Francisco José de Seixas
author2_role author
author
author
dc.contributor.author.fl_str_mv Costa, Newton de Lucena
Magalhães, João Avelar
Rodrigues, Braz Henrique Nunes
Santos, Francisco José de Seixas
dc.subject.por.fl_str_mv Folhas
Matéria seca
Perfilhamento
Senescência.
Hojas
Materia seca
Macolla
Senescencia.
Leaves
Dry matter
Tiller
Senescence.
topic Folhas
Matéria seca
Perfilhamento
Senescência.
Hojas
Materia seca
Macolla
Senescencia.
Leaves
Dry matter
Tiller
Senescence.
description The effect of defoliation frequency (14, 21, 28, 35, 42, 49 and 56 days) on forage production and morphogenic and structural characteristics of Mesosetum chaseae (Luces) was evaluated under natural field conditions during the dry season, in the savannas of Roraima. The reduction in pasture defoliation frequency resulted in higher green dry matter (GDM) yields, number of tillers plant-1, number of leaves tiller-1, tiller leaf area, leaf senescence rate and average leaf size. The relationship between defoliation frequency and GDM production was quadratic, with the maximum value estimated at 53.8 days of regrowth. Absolute rates of growth and leaf appearance and expansion were inversely proportional to defoliation frequencies. The highest rate of leaf expansion was obtained at 49.7 days of regrowth. Aiming to reconcile forage productivity with the optimization of the morphogenic and structural characteristics of the grass, the most appropriate period of use of its pastures is between 42 and 49 days of regrowth.
publishDate 2022
dc.date.none.fl_str_mv 2022-07-25
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/32473
10.33448/rsd-v11i10.32473
url https://rsdjournal.org/index.php/rsd/article/view/32473
identifier_str_mv 10.33448/rsd-v11i10.32473
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/32473/27615
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 11 No. 10; e127111032473
Research, Society and Development; Vol. 11 Núm. 10; e127111032473
Research, Society and Development; v. 11 n. 10; e127111032473
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
_version_ 1797052796841754624

Registros relacionados