Data/hora: 03/06/2024 17:33:33

Biblioteca(s): | Epagri-Sede.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | Nacional - B
Data corrente: | 13/07/2016
Data da última atualização: | 13/07/2016
Autoria: | MOURA, D. S.; NOLDIN, J. A.; GALON, L.; SCHREIBER, F.; MARTINI, A. T.
Título: | Management of Sagittaria montevidensis resistant to ALS and PSII mechanisms of action with saflufenacil associated with different adjuvants1.
Ano de publicação: | 2016
Fonte/Imprenta: | Revista Brasileira de Herbicidas, Londrina, PR., v. 15, n. 2, p. 148-156, 2016.
Idioma: | Inglês

Conteúdo:

This study aimed at evaluating the effective rates of saflufenacil and adjuvants for
controlling Sagittaria montevidensis (sagitaria) populations resistant to ALS and photosystem II
(PS II) inhibitor herbicides, and phytotoxicity to the Epagri 108 rice cultivar. Two biotypes of
sagitaria (SAGMO) were tested: SAGMO 10 ? with cross resistance to ALS inhibitor herbicides,
and SAGMO 32 - with multiple resistance to ALS and PSII inhibitor herbicides. Treatments
consisted of three different saflufenacil rates: 75; 112.5 and 150 g a.i. ha-1 with the addition of
adjuvants Dash HC® (0.5% v/v); Assist® (1% v/v); Iharaguen-S® (0.5% v/v) or Veget?Oil® (1 L
ha-1). Evaluation focused on arrowhead control, phytotoxicity and shoot dry weight (DMAP) of the
Epagri 108 rice cultivar. The saflufenacil rates of 75 to 150 g a.i. ha-1 did not provide efficient
control for both sagitaria biotypes. Addition of the adjuvants Veget?Oil®, Assist® or Iharaguen-S®
to saflufenacil did not alter the control efficiency of herbicide resistant sagitaria populations. The
Epagri 108 cultivar presented selectivity to saflufenacil until 150 g a.i. ha-1, without reducing
DMAP. The phytotoxicity caused by saflufenacil, to the rice plants was minimal with the addition
of Veget?Oil®. Rice plants shoot dry matter was not affected, regardless of the adjuvant used.
Saflufenacil can be used until the rate of 150 g a.i. ha-1 associated with adjuvant Veget?Oil® for the
management of sagitaria in rice fields, but it does not provide adequate control of biotypes SAGMO
10 and SAGMO 32.

Palavras-Chave: | California arrowhead; multiple resistance; Oryza sativa.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_38076.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (100269-1) - UPC - AP - DD -  -  -  - DIS