Data/hora: 03/06/2024 08:11:41

Provedor de dados: | Acta Scientiarum: Animal Sciences
País: | Brazil

Título:

Chemical control of signalgrass for establishing Tanzania-grass

Chemical control of signalgrass for establishing Tanzania-grass

Autores: | Rodrigues, Barbara Martins; Santos, Marcia Vitoria; Paschoaloto, Josimari Regina; Braz, Thiago Gomes dos Santos; Santos, José Barbosa; Martins, Cesar Augusto; Costa, João Pedro Rodrigues; Borges, Claudia Eduarda.
Data: | 2020-04-01
Ano: | 2020
Palavras-chave: | Signalgrass; Tanzania-grass; ACCase enzyme; Fluazifop-p-butyl; Glyphosate. signalgrass; Tanzania-grass; ACCase enzyme; Fluazifop-p-butyl; Glyphosate.
Resumo: | Herbicides have been used to control Brachiaria grass in pastures established or in formation given their practicality, however their efficiency is questionable due to the lack of specific graminicides for different forage species. Therefore, the goal of this study was to evaluate the efficiency of glyphosate and fluazifop-p-butyl in the control of Brachiaria decumbens (signalgrass) and the intoxication levels of Panicum maximum cv. Tanzania (Tanzania quinea grass) in pasture establishment. The experiments were designed in randomized blocks, in a 2 × 5 × 4 factorial arrangement of two herbicides (fluazifop-p-butyl and glyphosate), five doses equivalent to the commercial dosage of each herbicide (0.25; 0.50; 1.00; 1.50; 200), and four evaluation times after herbicide application (15, 21, 30 and 45 days). There was interaction between doses and evaluation times. The dose 1.5 L ha-1 fluazifop-p-butyl provides efficient control of signalgrass, however, leads to high intoxication in Tanzania guinea grass. Glyphosate is efficient in the control of signalgrass even at the lowest dose (90 g ha-1), however, it causes high intoxication in Tanzania guinea grass, preventing its use in developing pastures. It can be concluded that fluazifop-p-butyl and glyphosate herbicides are not recommended for the control of B. decumbens, cv. Basilisk in developing pastures of Tanzania guinea grass.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48408

10.4025/actascianimsci.v42i1.48408

Editor: | Editora da Universidade Estadual de Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48408/751375149794
Formato: | application/pdf

Fonte:

Acta Scientiarum. Animal Sciences; Vol 42 (2020): Publicação contínua; e48408

Acta Scientiarum. Animal Sciences; v. 42 (2020): Publicação contínua; e48408

1807-8672

1806-2636

Fonte:

Copyright (c) 2020 Acta Scientiarum. Animal Sciences

https://creativecommons.org/licenses/by/4.0