Growth suppression of sandspur grass by cover crops

Detalhes bibliográficos
Autor(a) principal: Silva, Rodrigo Fonseca da
Data de Publicação: 2015
Outros Autores: Pacheco, Leandro Pereira, Soares, Leandro dos Santos, Fonseca, Wéverson Lima, Oliveira, João Batista da Silva, Santos, Adaniel Sousa dos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/34680
Resumo: Sandspur grass has hindered the integrated weed management in the Brazilian crop systems. This study aimed at evaluating the efficiency of biomass levels of different cover crops on the soil surface to control the sandspur grass. A complete randomized blocks design with four replications, in a 6 x 5 + 1 factorial arrangement, was used. The first factor consisted of six cover crops (Pennisetum glaucum - ADR 7010 and ADR 300 cultivars, Crotalaria ochroleuca, Urochloa ruziziensis, Fagopyrum tataricum and Crambe abyssinica) and the second one consisted of five biomass levels of each species (2 t ha-1, 4 t ha-1, 8 t ha-1, 12 t ha-1 and 16 t ha-1), plus a control treatment without soil cover. The variables analyzed were the total number of emerged plants, germination speed index, leaf area, root volume and shoot and root dry biomass. U. ruziziensis excelled in the suppression of C. echinatus growth by reducing the number of emerged plants, emergence speed index, shoot and root dry biomass, root volume and leaf area.
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spelling Growth suppression of sandspur grass by cover cropsSupressão ao desenvolvimento de capim timbête com plantas de coberturaCenchrus echinatus L.allelopathyweed.Cenchrus echinatus L.alelopatiaplanta daninha.Sandspur grass has hindered the integrated weed management in the Brazilian crop systems. This study aimed at evaluating the efficiency of biomass levels of different cover crops on the soil surface to control the sandspur grass. A complete randomized blocks design with four replications, in a 6 x 5 + 1 factorial arrangement, was used. The first factor consisted of six cover crops (Pennisetum glaucum - ADR 7010 and ADR 300 cultivars, Crotalaria ochroleuca, Urochloa ruziziensis, Fagopyrum tataricum and Crambe abyssinica) and the second one consisted of five biomass levels of each species (2 t ha-1, 4 t ha-1, 8 t ha-1, 12 t ha-1 and 16 t ha-1), plus a control treatment without soil cover. The variables analyzed were the total number of emerged plants, germination speed index, leaf area, root volume and shoot and root dry biomass. U. ruziziensis excelled in the suppression of C. echinatus growth by reducing the number of emerged plants, emergence speed index, shoot and root dry biomass, root volume and leaf area.O capim timbête (Cenchrus echinatus L.) tem dificultado o manejo integrado de plantas daninhas, nos sistemas de produção agrícola brasileiros. Este estudo objetivou avaliar a eficiência de níveis de biomassa de diferentes plantas de cobertura sobre a superfície do solo, no controle do capim timbête. O delineamento utilizado foi o de blocos ao acaso, com quatro repetições, em esquema fatorial 6 x 5 + 1. O primeiro fator foi constituído por seis espécies de cobertura (Pennisetum glaucum - cultivares ADR 7010 e ADR 300, Crotalaria ochroleuca, Urochloa ruziziensis, Fagopyrum tataricum e Crambe abyssinica) e o segundo por cinco níveis de biomassa de cada espécie (2 t ha-1, 4 t ha-1, 8 t ha-1, 12 t ha-1 e 16 t ha-1), mais um tratamento controle, sem cobertura de solo. As variáveis analisadas foram o número total de plantas emergidas, índice de velocidade de germinação, área foliar, volume de raízes e biomassa seca da parte aérea e raízes. A espécie U. ruziziensis destacou-se na supressão ao desenvolvimento de C. echinatus, por proporcionar redução no número de plantas emergidas, índice de velocidade de emergência, biomassa seca da parte aérea e raízes, volume radicular e área foliar.Escola de Agronomia - Universidade Federal de Goiás2015-09-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufg.br/pat/article/view/34680Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 45, n. 3, Jul./Sep. 2015; 319-325Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 45, n. 3, jul./set. 2015; 319-325Pesquisa Agropecuária Tropical; v. 45, n. 3, jul./set. 2015; 319-3251983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/34680/18981Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessSilva, Rodrigo Fonseca daPacheco, Leandro PereiraSoares, Leandro dos SantosFonseca, Wéverson LimaOliveira, João Batista da SilvaSantos, Adaniel Sousa dos2020-07-13T16:28:33Zoai:ojs.revistas.ufg.br:article/34680Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:08.651318Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Growth suppression of sandspur grass by cover crops
Supressão ao desenvolvimento de capim timbête com plantas de cobertura
title Growth suppression of sandspur grass by cover crops
spellingShingle Growth suppression of sandspur grass by cover crops
Silva, Rodrigo Fonseca da
Cenchrus echinatus L.
allelopathy
weed.
Cenchrus echinatus L.
alelopatia
planta daninha.
title_short Growth suppression of sandspur grass by cover crops
title_full Growth suppression of sandspur grass by cover crops
title_fullStr Growth suppression of sandspur grass by cover crops
title_full_unstemmed Growth suppression of sandspur grass by cover crops
title_sort Growth suppression of sandspur grass by cover crops
author Silva, Rodrigo Fonseca da
author_facet Silva, Rodrigo Fonseca da
Pacheco, Leandro Pereira
Soares, Leandro dos Santos
Fonseca, Wéverson Lima
Oliveira, João Batista da Silva
Santos, Adaniel Sousa dos
author_role author
author2 Pacheco, Leandro Pereira
Soares, Leandro dos Santos
Fonseca, Wéverson Lima
Oliveira, João Batista da Silva
Santos, Adaniel Sousa dos
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Silva, Rodrigo Fonseca da
Pacheco, Leandro Pereira
Soares, Leandro dos Santos
Fonseca, Wéverson Lima
Oliveira, João Batista da Silva
Santos, Adaniel Sousa dos
dc.subject.por.fl_str_mv Cenchrus echinatus L.
allelopathy
weed.
Cenchrus echinatus L.
alelopatia
planta daninha.
topic Cenchrus echinatus L.
allelopathy
weed.
Cenchrus echinatus L.
alelopatia
planta daninha.
description Sandspur grass has hindered the integrated weed management in the Brazilian crop systems. This study aimed at evaluating the efficiency of biomass levels of different cover crops on the soil surface to control the sandspur grass. A complete randomized blocks design with four replications, in a 6 x 5 + 1 factorial arrangement, was used. The first factor consisted of six cover crops (Pennisetum glaucum - ADR 7010 and ADR 300 cultivars, Crotalaria ochroleuca, Urochloa ruziziensis, Fagopyrum tataricum and Crambe abyssinica) and the second one consisted of five biomass levels of each species (2 t ha-1, 4 t ha-1, 8 t ha-1, 12 t ha-1 and 16 t ha-1), plus a control treatment without soil cover. The variables analyzed were the total number of emerged plants, germination speed index, leaf area, root volume and shoot and root dry biomass. U. ruziziensis excelled in the suppression of C. echinatus growth by reducing the number of emerged plants, emergence speed index, shoot and root dry biomass, root volume and leaf area.
publishDate 2015
dc.date.none.fl_str_mv 2015-09-21
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://revistas.ufg.br/pat/article/view/34680
url https://revistas.ufg.br/pat/article/view/34680
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/34680/18981
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 45, n. 3, Jul./Sep. 2015; 319-325
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 45, n. 3, jul./set. 2015; 319-325
Pesquisa Agropecuária Tropical; v. 45, n. 3, jul./set. 2015; 319-325
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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