| Registro completo |
| Provedor de dados: |
Ciência Rural
|
| País: |
Brazil
|
| Título: |
Drift of 2,4-D and dicamba applied to soybean at vegetative and reproductive growth stage
|
| Autores: |
Silva,Diecson Ruy Orsolin da
Silva,Edson Dalla Nora da
Aguiar,Adalin Cezar Moraes de
Novello,Bruna Dal’Pizol
Silva,Álvaro André Alba da
Basso,Claudir José
|
| Data: |
2018-01-01
|
| Ano: |
2018
|
| Palavras-chave: |
Dose response
Injury
Germination
Vigor
Synthetic auxin
|
| Resumo: |
ABSTRACT: The introduction of dicamba and 2,4-D-resistant soybean will increase the use of auxin herbicides for management of herbicide-resistant weeds, increasing risk of drift in non-target crops. The field experiment was conducted in 2016/17 to evaluate injury, growth, yield, germination and seeds vigor of soybean effects to simulated drift of 2,4-D and dicamba applied to soybean at the V3 and R2 growth stages. To simulate drift, 2,4-D was applied at 0; 5.16; 10.4; 20.8 e 41.5g ae ha-1 and dicamba at: 0; 3.7; 7.4; 14.9 e 29.8g ae ha-1. The injury of the dicamba is greater than 2,4-D, and the V5 stage is more susceptible to both herbicides. The greatest reductions in soybean yield follow the drift of dicamba in R2 and 2,4-D in V5. The physiological quality seeds of the soybean is reduced by dicamba and 2,4-D drift at both the V5 and R2 stages of the soybean. Soybean is highly sensitive to low rates of 2,4-D and dicamba at the vegetative or reproductive growth stages. Dicamba causes greater negative effects than 2,4-D on soybean. The low rate of 2,4-D and dicamba reduce germination and vigor seed on soybean offspring.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000800151
|
| Editor: |
Universidade Federal de Santa Maria
|
| Relação: |
10.1590/0103-8478cr20180179
|
| Formato: |
text/html
|
| Fonte: |
Ciência Rural v.48 n.8 2018
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
|
