Seeding rate and velocity influence on black oat (Avena strigosa Schreb.) growth, under no-tillage conditions

Detalhes bibliográficos
Autor(a) principal: Martins, Jorge Dubal
Data de Publicação: 2008
Outros Autores: Debiasi, Henrique, Missio, Evandro Luiz
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Gaúcha (Online)
Texto Completo: http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/225
Resumo: An experiment under no-tillage conditions was carried out in São Gabriel/RS, to evaluate the influence of seeding rate (30, 60 and 90 kg/ha of viable seeds) and velocity (3,2; 5,3; 6,9; and 8,2 km/h) on black oat growth, which was submitted to a intensive cattle grazing. Number of tillers per plant and culms per m2 were affected by seeding rate, but not by seeding velocity. Before grazing, plant and principal culm dry matter such as total dry matter production were bigger for higher seeding velocities. Major total dry matter production was observed for seeding rates of 60 and 90 kg/ha. Higher seeding rates reduced leaf/culm ratio and plant, principal culm and tillers dry matter. After grazing, all variables were not influenced by the treatments, excepting plant dry matter, stature and number of tillers per plant and culms per m2.
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spelling Seeding rate and velocity influence on black oat (Avena strigosa Schreb.) growth, under no-tillage conditions Influência da densidade e velocidade de semeadura no crescimento da aveia preta (Avena strigosa Schreb.), em semeadura diretaplant population, seeders, no-tillage, tillering, dry matter production.população de plantas, semeadoras, semeadura direta, perfilhamento, produção de massa seca.An experiment under no-tillage conditions was carried out in São Gabriel/RS, to evaluate the influence of seeding rate (30, 60 and 90 kg/ha of viable seeds) and velocity (3,2; 5,3; 6,9; and 8,2 km/h) on black oat growth, which was submitted to a intensive cattle grazing. Number of tillers per plant and culms per m2 were affected by seeding rate, but not by seeding velocity. Before grazing, plant and principal culm dry matter such as total dry matter production were bigger for higher seeding velocities. Major total dry matter production was observed for seeding rates of 60 and 90 kg/ha. Higher seeding rates reduced leaf/culm ratio and plant, principal culm and tillers dry matter. After grazing, all variables were not influenced by the treatments, excepting plant dry matter, stature and number of tillers per plant and culms per m2.Avaliou-se o efeito da densidade (30, 60 e 90 kg/ha de sementes viáveis) e da velocidade de semeadura (3,2; 5,3; 6,9 e 8,2 km/ h) no crescimento da aveia preta, submetida a um pastejo intensivo, em um experimento conduzido sob semeadura direta em São Gabriel/RS. O número de perfilhos por planta e de colmos por m2 foi afetado pela densidade, mas não pela velocidade de semeadura. Antes do pastejo, a massa seca da planta e do colmo principal e a produção de massa seca foram maiores para as velocidades mais altas. Observou-se ainda uma maior produção de massa seca e estatura de planta nas densidades de 60 e 90 kg/ha e uma redução na relação folha/colmo e na massa específica da planta, do colmo principal e dos perfilhos, com o aumento da densidade. À exceção da massa da planta, da estatura, do número de perfilhos por planta e de colmos por m2, as demais variáveis não foram influenciadas pelos tratamentos, após o pastejo.Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural2008-08-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/225Pesquisa Agropecuária Gaúcha; Vol 14 No 1 (2008): PESQ. AGROP. GAÚCHA; 33-40Pesquisa Agropecuária Gaúcha; v. 14 n. 1 (2008): PESQ. AGROP. GAÚCHA; 33-402595-76860104-9070reponame:Pesquisa Agropecuária Gaúcha (Online)instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulinstacron:SEAPDRporhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/225/188Martins, Jorge Dubal Debiasi, Henrique Missio, Evandro Luiz info:eu-repo/semantics/openAccess2024-04-22T12:37:50Zoai:ojs.revistapag.agricultura.rs.gov.br:article/225Revistahttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapagPUBhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/oaipag@agricultura.rs.gov.br||2595-76860104-9070opendoar:2024-04-22T12:37:50Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulfalse
dc.title.none.fl_str_mv Seeding rate and velocity influence on black oat (Avena strigosa Schreb.) growth, under no-tillage conditions
Influência da densidade e velocidade de semeadura no crescimento da aveia preta (Avena strigosa Schreb.), em semeadura direta
title Seeding rate and velocity influence on black oat (Avena strigosa Schreb.) growth, under no-tillage conditions
spellingShingle Seeding rate and velocity influence on black oat (Avena strigosa Schreb.) growth, under no-tillage conditions
Martins, Jorge Dubal
plant population, seeders, no-tillage, tillering, dry matter production.
população de plantas, semeadoras, semeadura direta, perfilhamento, produção de massa seca.
title_short Seeding rate and velocity influence on black oat (Avena strigosa Schreb.) growth, under no-tillage conditions
title_full Seeding rate and velocity influence on black oat (Avena strigosa Schreb.) growth, under no-tillage conditions
title_fullStr Seeding rate and velocity influence on black oat (Avena strigosa Schreb.) growth, under no-tillage conditions
title_full_unstemmed Seeding rate and velocity influence on black oat (Avena strigosa Schreb.) growth, under no-tillage conditions
title_sort Seeding rate and velocity influence on black oat (Avena strigosa Schreb.) growth, under no-tillage conditions
author Martins, Jorge Dubal
author_facet Martins, Jorge Dubal
Debiasi, Henrique
Missio, Evandro Luiz
author_role author
author2 Debiasi, Henrique
Missio, Evandro Luiz
author2_role author
author
dc.contributor.author.fl_str_mv Martins, Jorge Dubal
Debiasi, Henrique
Missio, Evandro Luiz
dc.subject.por.fl_str_mv plant population, seeders, no-tillage, tillering, dry matter production.
população de plantas, semeadoras, semeadura direta, perfilhamento, produção de massa seca.
topic plant population, seeders, no-tillage, tillering, dry matter production.
população de plantas, semeadoras, semeadura direta, perfilhamento, produção de massa seca.
description An experiment under no-tillage conditions was carried out in São Gabriel/RS, to evaluate the influence of seeding rate (30, 60 and 90 kg/ha of viable seeds) and velocity (3,2; 5,3; 6,9; and 8,2 km/h) on black oat growth, which was submitted to a intensive cattle grazing. Number of tillers per plant and culms per m2 were affected by seeding rate, but not by seeding velocity. Before grazing, plant and principal culm dry matter such as total dry matter production were bigger for higher seeding velocities. Major total dry matter production was observed for seeding rates of 60 and 90 kg/ha. Higher seeding rates reduced leaf/culm ratio and plant, principal culm and tillers dry matter. After grazing, all variables were not influenced by the treatments, excepting plant dry matter, stature and number of tillers per plant and culms per m2.
publishDate 2008
dc.date.none.fl_str_mv 2008-08-10
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 http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/225
url http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/225
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/225/188
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural
publisher.none.fl_str_mv Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural
dc.source.none.fl_str_mv Pesquisa Agropecuária Gaúcha; Vol 14 No 1 (2008): PESQ. AGROP. GAÚCHA; 33-40
Pesquisa Agropecuária Gaúcha; v. 14 n. 1 (2008): PESQ. AGROP. GAÚCHA; 33-40
2595-7686
0104-9070
reponame:Pesquisa Agropecuária Gaúcha (Online)
instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
instacron:SEAPDR
instname_str Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
instacron_str SEAPDR
institution SEAPDR
reponame_str Pesquisa Agropecuária Gaúcha (Online)
collection Pesquisa Agropecuária Gaúcha (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
repository.mail.fl_str_mv pag@agricultura.rs.gov.br||
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