Weeds alter the establishment of Brachiaria brizantha cv. Marandu
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.17138/TGFT(5)85-93 http://hdl.handle.net/11449/165836 |
Resumo: | The present study evaluated the effects of different periods of coexistence among the main weeds and Marandu brachiaria grass (Brachiaria brizantha, now Urochloa brizantha) in newly sown pasture. The experiment was conducted in a randomized block with 4 replications, with treatments being 8 coexistence periods: 0, 15, 30, 45, 60, 75, 90 and 120 days after emergence. A phytosociological assessment of the weed community was carried out at the end of the coexistence periods, and weeds were eliminated from the appropriate treatment using herbicide. Key morphogenic parameters of the forages were assessed at the end of the experimental period and dry matter production was determined. Results indicated that the presence of weeds had negative impacts on the main morphogenic components, such as plant height, number of tillers and production of leaf and stem dry matter. The presence of weeds reduced productivity in Marandu, with 15 days competition being sufficient to reduce forage production by approximately 50%, suggesting that weed control measures should be adopted within 15 days following emergence of seedlings of Marandu and weeds. |
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Weeds alter the establishment of Brachiaria brizantha cv. MaranduDry matterinterferencepasture renovationweed competitionThe present study evaluated the effects of different periods of coexistence among the main weeds and Marandu brachiaria grass (Brachiaria brizantha, now Urochloa brizantha) in newly sown pasture. The experiment was conducted in a randomized block with 4 replications, with treatments being 8 coexistence periods: 0, 15, 30, 45, 60, 75, 90 and 120 days after emergence. A phytosociological assessment of the weed community was carried out at the end of the coexistence periods, and weeds were eliminated from the appropriate treatment using herbicide. Key morphogenic parameters of the forages were assessed at the end of the experimental period and dry matter production was determined. Results indicated that the presence of weeds had negative impacts on the main morphogenic components, such as plant height, number of tillers and production of leaf and stem dry matter. The presence of weeds reduced productivity in Marandu, with 15 days competition being sufficient to reduce forage production by approximately 50%, suggesting that weed control measures should be adopted within 15 days following emergence of seedlings of Marandu and weeds.Univ Fed Mato Grosso, Av Valdon Varjao 6390, BR-78600000 Barra Do Garcas, MT, BrazilUniv Estadual Paulista, Fac Ciencias Agr & Vet, Jaboticabal, SP, BrazilUniv Estadual Paulista, Fac Ciencias Agr & Vet, Jaboticabal, SP, BrazilCentro Int Agricultura Tropical-ciatUniversidade Federal de Mato Grosso do Sul (UFMS)Universidade Estadual Paulista (Unesp)Marchi, Sidnei R. deBelle, Jose R.Foz, Celso H.Ferri, JucileneMartins, Dagoberto [UNESP]2018-11-28T23:59:40Z2018-11-28T23:59:40Z2017-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject85-93application/pdfhttp://dx.doi.org/10.17138/TGFT(5)85-93Tropical Grasslands-forrajes Tropicales. Valle Del Cauca: Centro Int Agricultura Tropical-ciat, v. 5, n. 2, p. 85-93, 2017.2346-3775http://hdl.handle.net/11449/16583610.17138/TGFT(5)85-93WOS:000413194400004WOS000413194400004.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTropical Grasslands-forrajes Tropicales0,188info:eu-repo/semantics/openAccess2024-04-30T16:00:07Zoai:repositorio.unesp.br:11449/165836Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:04:50.112538Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Weeds alter the establishment of Brachiaria brizantha cv. Marandu |
title |
Weeds alter the establishment of Brachiaria brizantha cv. Marandu |
spellingShingle |
Weeds alter the establishment of Brachiaria brizantha cv. Marandu Marchi, Sidnei R. de Dry matter interference pasture renovation weed competition |
title_short |
Weeds alter the establishment of Brachiaria brizantha cv. Marandu |
title_full |
Weeds alter the establishment of Brachiaria brizantha cv. Marandu |
title_fullStr |
Weeds alter the establishment of Brachiaria brizantha cv. Marandu |
title_full_unstemmed |
Weeds alter the establishment of Brachiaria brizantha cv. Marandu |
title_sort |
Weeds alter the establishment of Brachiaria brizantha cv. Marandu |
author |
Marchi, Sidnei R. de |
author_facet |
Marchi, Sidnei R. de Belle, Jose R. Foz, Celso H. Ferri, Jucilene Martins, Dagoberto [UNESP] |
author_role |
author |
author2 |
Belle, Jose R. Foz, Celso H. Ferri, Jucilene Martins, Dagoberto [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Mato Grosso do Sul (UFMS) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Marchi, Sidnei R. de Belle, Jose R. Foz, Celso H. Ferri, Jucilene Martins, Dagoberto [UNESP] |
dc.subject.por.fl_str_mv |
Dry matter interference pasture renovation weed competition |
topic |
Dry matter interference pasture renovation weed competition |
description |
The present study evaluated the effects of different periods of coexistence among the main weeds and Marandu brachiaria grass (Brachiaria brizantha, now Urochloa brizantha) in newly sown pasture. The experiment was conducted in a randomized block with 4 replications, with treatments being 8 coexistence periods: 0, 15, 30, 45, 60, 75, 90 and 120 days after emergence. A phytosociological assessment of the weed community was carried out at the end of the coexistence periods, and weeds were eliminated from the appropriate treatment using herbicide. Key morphogenic parameters of the forages were assessed at the end of the experimental period and dry matter production was determined. Results indicated that the presence of weeds had negative impacts on the main morphogenic components, such as plant height, number of tillers and production of leaf and stem dry matter. The presence of weeds reduced productivity in Marandu, with 15 days competition being sufficient to reduce forage production by approximately 50%, suggesting that weed control measures should be adopted within 15 days following emergence of seedlings of Marandu and weeds. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-05-01 2018-11-28T23:59:40Z 2018-11-28T23:59:40Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.17138/TGFT(5)85-93 Tropical Grasslands-forrajes Tropicales. Valle Del Cauca: Centro Int Agricultura Tropical-ciat, v. 5, n. 2, p. 85-93, 2017. 2346-3775 http://hdl.handle.net/11449/165836 10.17138/TGFT(5)85-93 WOS:000413194400004 WOS000413194400004.pdf |
url |
http://dx.doi.org/10.17138/TGFT(5)85-93 http://hdl.handle.net/11449/165836 |
identifier_str_mv |
Tropical Grasslands-forrajes Tropicales. Valle Del Cauca: Centro Int Agricultura Tropical-ciat, v. 5, n. 2, p. 85-93, 2017. 2346-3775 10.17138/TGFT(5)85-93 WOS:000413194400004 WOS000413194400004.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Tropical Grasslands-forrajes Tropicales 0,188 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
85-93 application/pdf |
dc.publisher.none.fl_str_mv |
Centro Int Agricultura Tropical-ciat |
publisher.none.fl_str_mv |
Centro Int Agricultura Tropical-ciat |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129580582567936 |