Herbicide performance in the control of Conyza spp. where three plant heights
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/53718 |
Resumo: | Intensive use of the herbicide glyphosate has led to herbicide resistant Conyza spp. populations. Thus, there is a need to indicate alternative herbicides and the appropriate developmental stage for controlling these populations. This study identifies alternatives for controlling glyphosate-resistant horseweed, with treatment applications at different plant heights. For this purpose, field experiments were conducted in the 2016/17 and 2017/18 crop years. The evaluated treatments were: glyphosate (540 g ae ha-1), glyphosate (1080 g ae ha-1), glyphosate (2160 g ae ha-1), glyphosate (3240 g ae ha-1), glyphosate + 2.4-D (1080 + 1005 g ae ha-1), glyphosate + saflufenacil (1080 + 49 g ae/ai ha-1), paraquat (400 g ai ha-1), diquat (400 g ai ha-1), ammonium glufosinate (600 g ai ha-1), and control (without application). These treatments were applied to plants with a maximum of 5 cm; plants between 6 and 15 cm; and plants between 16 and 25 cm. The results showed that glyphosate did not control weeds, regardless of rate. With the exception of 2,4-D, which needs complementation with sequential application of another contact herbicide, all alternatives were viable for the control of Conyza spp. plants with a maximum height of 5 cm. |
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Herbicide performance in the control of Conyza spp. where three plant heightsAlternative Chemical ControlApplication Growth StageHorseweedResistance.Agricultural SciencesIntensive use of the herbicide glyphosate has led to herbicide resistant Conyza spp. populations. Thus, there is a need to indicate alternative herbicides and the appropriate developmental stage for controlling these populations. This study identifies alternatives for controlling glyphosate-resistant horseweed, with treatment applications at different plant heights. For this purpose, field experiments were conducted in the 2016/17 and 2017/18 crop years. The evaluated treatments were: glyphosate (540 g ae ha-1), glyphosate (1080 g ae ha-1), glyphosate (2160 g ae ha-1), glyphosate (3240 g ae ha-1), glyphosate + 2.4-D (1080 + 1005 g ae ha-1), glyphosate + saflufenacil (1080 + 49 g ae/ai ha-1), paraquat (400 g ai ha-1), diquat (400 g ai ha-1), ammonium glufosinate (600 g ai ha-1), and control (without application). These treatments were applied to plants with a maximum of 5 cm; plants between 6 and 15 cm; and plants between 16 and 25 cm. The results showed that glyphosate did not control weeds, regardless of rate. With the exception of 2,4-D, which needs complementation with sequential application of another contact herbicide, all alternatives were viable for the control of Conyza spp. plants with a maximum height of 5 cm.O uso intensivo do herbicida glifosato selecionou populações de Conyza spp. resistentes a este herbicida, desta forma, existe a necessidade da indicação de herbicidas alternativos bem como o estádio de desenvolvimento adequado para o controle dessas populações. Objetivou-se identificar alternativas para o controle de buva resistente ao glifosato, aplicadas em diferentes estaturas da planta daninha. Para isso, foram conduzidos experimentos a campo, nos anos agrícolas 2016/17 e 2017/18. Os tratamentos avaliados foram: glifosato (540 g e.a. ha-1), glifosato (1080 g e.a. ha-1), glifosato (2160 g e.a. ha-1), glifosato (3240 g e.a. ha-1), glifosato + 2,4-D (1080 + 1005 g e.a. ha-1), glifosato + saflufenacil (1080 + 49 g e.a./i.a. ha-1), paraquate (400 g i.a. ha-1), diquate (400 g i.a. ha-1), Glufosinato de amônio (600 g i.a. ha-1) e testemunha sem aplicação, aplicados nas plantas com no máximo 5 cm; plantas entre 6 e 15 cm; e plantas entre 16 e 25 cm. Os resultados evidenciaram que nenhuma dose do glifosato controlou as plantas daninhas, e com exceção do 2,4-D que necessita de complemento com aplicação sequencial de outro herbicida de contato, todas as alternativas apresentaram-se viáveis para o controle de plantas de Conyza spp. com no máximo 5 cm de estatura.EDUFU2021-12-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/5371810.14393/BJ-v37n0a2021-53718Bioscience Journal ; Vol. 37 (2021): Continuous Publication; e37091Bioscience Journal ; v. 37 (2021): Continuous Publication; e370911981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/53718/33015Brazil; Contemporary Copyright (c) 2021 Theodoro Schneider, Juliane Nicolodi Camera, Jana Koefender, Mauro Antônio Rizzardi, Mario Antônio Bianchi, Ana Paula Rockenbachhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessTheodoro SchneiderNicolodi Camera, JulianeKoefender, JanaRizzardi, Mauro AntônioBianchi, Mario AntônioRockenbach, Ana Paula 2022-05-25T13:36:00Zoai:ojs.www.seer.ufu.br:article/53718Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-05-25T13:36Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Herbicide performance in the control of Conyza spp. where three plant heights |
title |
Herbicide performance in the control of Conyza spp. where three plant heights |
spellingShingle |
Herbicide performance in the control of Conyza spp. where three plant heights Theodoro Schneider Alternative Chemical Control Application Growth Stage Horseweed Resistance. Agricultural Sciences |
title_short |
Herbicide performance in the control of Conyza spp. where three plant heights |
title_full |
Herbicide performance in the control of Conyza spp. where three plant heights |
title_fullStr |
Herbicide performance in the control of Conyza spp. where three plant heights |
title_full_unstemmed |
Herbicide performance in the control of Conyza spp. where three plant heights |
title_sort |
Herbicide performance in the control of Conyza spp. where three plant heights |
author |
Theodoro Schneider |
author_facet |
Theodoro Schneider Nicolodi Camera, Juliane Koefender, Jana Rizzardi, Mauro Antônio Bianchi, Mario Antônio Rockenbach, Ana Paula |
author_role |
author |
author2 |
Nicolodi Camera, Juliane Koefender, Jana Rizzardi, Mauro Antônio Bianchi, Mario Antônio Rockenbach, Ana Paula |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Theodoro Schneider Nicolodi Camera, Juliane Koefender, Jana Rizzardi, Mauro Antônio Bianchi, Mario Antônio Rockenbach, Ana Paula |
dc.subject.por.fl_str_mv |
Alternative Chemical Control Application Growth Stage Horseweed Resistance. Agricultural Sciences |
topic |
Alternative Chemical Control Application Growth Stage Horseweed Resistance. Agricultural Sciences |
description |
Intensive use of the herbicide glyphosate has led to herbicide resistant Conyza spp. populations. Thus, there is a need to indicate alternative herbicides and the appropriate developmental stage for controlling these populations. This study identifies alternatives for controlling glyphosate-resistant horseweed, with treatment applications at different plant heights. For this purpose, field experiments were conducted in the 2016/17 and 2017/18 crop years. The evaluated treatments were: glyphosate (540 g ae ha-1), glyphosate (1080 g ae ha-1), glyphosate (2160 g ae ha-1), glyphosate (3240 g ae ha-1), glyphosate + 2.4-D (1080 + 1005 g ae ha-1), glyphosate + saflufenacil (1080 + 49 g ae/ai ha-1), paraquat (400 g ai ha-1), diquat (400 g ai ha-1), ammonium glufosinate (600 g ai ha-1), and control (without application). These treatments were applied to plants with a maximum of 5 cm; plants between 6 and 15 cm; and plants between 16 and 25 cm. The results showed that glyphosate did not control weeds, regardless of rate. With the exception of 2,4-D, which needs complementation with sequential application of another contact herbicide, all alternatives were viable for the control of Conyza spp. plants with a maximum height of 5 cm. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-29 |
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://seer.ufu.br/index.php/biosciencejournal/article/view/53718 10.14393/BJ-v37n0a2021-53718 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/53718 |
identifier_str_mv |
10.14393/BJ-v37n0a2021-53718 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/53718/33015 |
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.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 37 (2021): Continuous Publication; e37091 Bioscience Journal ; v. 37 (2021): Continuous Publication; e37091 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
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1797069082461208576 |