| Registro completo |
| Provedor de dados: |
Planta Daninha
|
| País: |
Brazil
|
| Título: |
Action of Imazethapyr and Lactofen on the Nodulation of Conventional and Transgenic Soybean under Drought Stress Conditions
|
| Autores: |
GONÇALVES,C.G.
SILVA JUNIOR,A.C.
SCARANO,M.
PEREIRA,M.R.R.
MARTINS,D.
|
| Data: |
2018-01-01
|
| Ano: |
2018
|
| Palavras-chave: |
ALS
Glycine max
Phytotoxification
PROTOX
Symbiotic fixation of N2
|
| Resumo: |
ABSTRACT: This research aimed at studying the action of the herbicides imazethapyr and lactofen on the root system and rhizobium/plant interaction, when they are sprayed at two phenological development stages of soybean cultivars under different soil water management. The soybean cultivars MG/BR 46 Conquista (conventional) and BRS Valiosa (RR) were submitted to three minimum soil water potential (Ψs): -0.03; -0.07 and -0.5 MPa at the V2 and V4 phenological stages. The herbicides imazethapyr at the rate (100 g a.i. ha-1) and lactofen at the rate (180 g a.i. ha-1) were sprayed 10 days after the start of water restrictions. Twenty-one days after the application of the herbicides, root dry matter and root nodulation were evaluated. The BRS Valiosa (RR) soybean cultivar presented better nodule formation and a more efficient and more adapted root system to support moderate drought stress conditions (-0.07 MPa). The MG/BR 46 Conquista (conventional) soybean cultivar presented lower the root system growth when submitted to the spraying of imazethapyr and lactofen. The activity of N2-fixating bacteria was affected by the spraying of the herbicides imazethapyr and lactofen.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100278
|
| Editor: |
Sociedade Brasileira da Ciência das Plantas Daninhas
|
| Relação: |
10.1590/s0100-83582018360100061
|
| Formato: |
text/html
|
| Fonte: |
Planta Daninha v.36 2018
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
