Bioherbicidal action of Phoma dimorpha fermented broth on seeds and plants of Senna obtusifolia

Detalhes bibliográficos
Autor(a) principal: Chaves Neto, José Roberto
Data de Publicação: 2019
Outros Autores: Mazutti, Marcio Antonio, Zabot, Giovani Leone, Tres, Marcus Vinícius
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/56894
Resumo: The weed Senna obtusifolia causes severe damages to pasture areas in Brazil, due to its high production and seed spread. This study aimed to evaluate the bioherbicidal action of Phoma dimorpha fermented broth in the pre-emergence and post-emergence of S. obtusifolia. The experimental design was completely randomized, with two treatments, one with and other without the application of the fermented broth. The bioherbicidal effects were measured in bioassays of pre-emergence (germination percentage), detached leaves (phytotoxicity) and post-emergence (phytotoxicity, plant height and fresh plant mass). The application of the fermented broth provided a pre-emergence bioherbicidal action, inhibiting the seed germination in 100 %. In detached leaves, it caused leaf necrosis and death on the ninth day after the application. In the post-emergence, this application caused moderate symptoms, such as leaf spots and reduction in the weed plant size. It was concluded that the P. dimorpha fermented broth has a potential herbicidal action and, therefore, represents an alternative in the development of bioproducts for a sustainable weed control in pastures. KEYWORDS: Senna obtusifolia, biological control, phytotoxicity, weed.
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spelling Bioherbicidal action of Phoma dimorpha fermented broth on seeds and plants of Senna obtusifoliaAção bioherbicida de caldo fermentado de Phoma dimorpha em sementes e plantas de Senna obtusifoliaThe weed Senna obtusifolia causes severe damages to pasture areas in Brazil, due to its high production and seed spread. This study aimed to evaluate the bioherbicidal action of Phoma dimorpha fermented broth in the pre-emergence and post-emergence of S. obtusifolia. The experimental design was completely randomized, with two treatments, one with and other without the application of the fermented broth. The bioherbicidal effects were measured in bioassays of pre-emergence (germination percentage), detached leaves (phytotoxicity) and post-emergence (phytotoxicity, plant height and fresh plant mass). The application of the fermented broth provided a pre-emergence bioherbicidal action, inhibiting the seed germination in 100 %. In detached leaves, it caused leaf necrosis and death on the ninth day after the application. In the post-emergence, this application caused moderate symptoms, such as leaf spots and reduction in the weed plant size. It was concluded that the P. dimorpha fermented broth has a potential herbicidal action and, therefore, represents an alternative in the development of bioproducts for a sustainable weed control in pastures. KEYWORDS: Senna obtusifolia, biological control, phytotoxicity, weed.A planta daninha Senna obtusifolia causa severos danos em áreas de pastagens no Brasil, devido à sua elevada produção e disseminação de sementes. Objetivou-se avaliar a ação bioherbicida do caldo fermentado de Phoma dimorpha na pré-emergência e pós-emergência de S. obtusifolia. O delineamento experimental utilizado foi inteiramente casualizado, com dois tratamentos, um com e outro sem aplicação do caldo fermentado. Os efeitos bioherbicidas foram mensurados em bioensaios de pré-emergência (porcentagem de germinação), folhas destacadas (fitotoxicidade) e pós-emergência (fitotoxicidade, altura de planta e massa fresca de planta). A aplicação do caldo fermentado proporcionou ação bioherbicida em pré-emergência, inibindo em 100 % a germinação das sementes. Em folhas destacadas, ocasionou necrose e morte das folhas no nono dia após a aplicação. Na pós-emergência, essa aplicação ocasionou sintomas moderados, como manchas nas folhas e redução no tamanho da planta daninha. Conclui-se que o caldo fermentado de P. dimorpha possui ação herbicida potencial e, por isso, representa uma alternativa no desenvolvimento de bioprodutos para o controle sustentável de plantas daninhas em pastagens. PALAVRAS-CHAVE: Fedegoso, controle biológico, fitotoxidade, planta daninha.Escola de Agronomia - Universidade Federal de Goiás2019-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/56894Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e56894Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e56894Pesquisa Agropecuária Tropical; v. 50 (2020); e568941983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/56894/33888Copyright (c) 2019 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessChaves Neto, José RobertoMazutti, Marcio AntonioZabot, Giovani LeoneTres, Marcus Vinícius2020-02-28T13:22:44Zoai:ojs.revistas.ufg.br:article/56894Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:26.141834Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Bioherbicidal action of Phoma dimorpha fermented broth on seeds and plants of Senna obtusifolia
Ação bioherbicida de caldo fermentado de Phoma dimorpha em sementes e plantas de Senna obtusifolia
title Bioherbicidal action of Phoma dimorpha fermented broth on seeds and plants of Senna obtusifolia
spellingShingle Bioherbicidal action of Phoma dimorpha fermented broth on seeds and plants of Senna obtusifolia
Chaves Neto, José Roberto
title_short Bioherbicidal action of Phoma dimorpha fermented broth on seeds and plants of Senna obtusifolia
title_full Bioherbicidal action of Phoma dimorpha fermented broth on seeds and plants of Senna obtusifolia
title_fullStr Bioherbicidal action of Phoma dimorpha fermented broth on seeds and plants of Senna obtusifolia
title_full_unstemmed Bioherbicidal action of Phoma dimorpha fermented broth on seeds and plants of Senna obtusifolia
title_sort Bioherbicidal action of Phoma dimorpha fermented broth on seeds and plants of Senna obtusifolia
author Chaves Neto, José Roberto
author_facet Chaves Neto, José Roberto
Mazutti, Marcio Antonio
Zabot, Giovani Leone
Tres, Marcus Vinícius
author_role author
author2 Mazutti, Marcio Antonio
Zabot, Giovani Leone
Tres, Marcus Vinícius
author2_role author
author
author
dc.contributor.author.fl_str_mv Chaves Neto, José Roberto
Mazutti, Marcio Antonio
Zabot, Giovani Leone
Tres, Marcus Vinícius
description The weed Senna obtusifolia causes severe damages to pasture areas in Brazil, due to its high production and seed spread. This study aimed to evaluate the bioherbicidal action of Phoma dimorpha fermented broth in the pre-emergence and post-emergence of S. obtusifolia. The experimental design was completely randomized, with two treatments, one with and other without the application of the fermented broth. The bioherbicidal effects were measured in bioassays of pre-emergence (germination percentage), detached leaves (phytotoxicity) and post-emergence (phytotoxicity, plant height and fresh plant mass). The application of the fermented broth provided a pre-emergence bioherbicidal action, inhibiting the seed germination in 100 %. In detached leaves, it caused leaf necrosis and death on the ninth day after the application. In the post-emergence, this application caused moderate symptoms, such as leaf spots and reduction in the weed plant size. It was concluded that the P. dimorpha fermented broth has a potential herbicidal action and, therefore, represents an alternative in the development of bioproducts for a sustainable weed control in pastures. KEYWORDS: Senna obtusifolia, biological control, phytotoxicity, weed.
publishDate 2019
dc.date.none.fl_str_mv 2019-11-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/56894
url https://revistas.ufg.br/pat/article/view/56894
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/56894/33888
dc.rights.driver.fl_str_mv Copyright (c) 2019 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 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]; Vol. 50 (2020); e56894
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e56894
Pesquisa Agropecuária Tropical; v. 50 (2020); e56894
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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