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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
08/04/2021 |
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Data da última atualização: |
08/04/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BASTIANI, M. O.; ROMA-BURGOS, N.; LANGARO, A. C.; SALAS-PEREZ, R. A.; ROUSE, C. E.; FIPKE, M. V.; LAMEGO, F. P. |
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Afiliação: |
MARLON O. BASTIANI, UFPEL; NILDA ROMA-BURGOS, University of Arkansas; ANA C. LANGARO, UFV; REIOFELI A. SALAS-PEREZ, University of Arkansas; CHRISTOPHER E. ROUSE, University of Arkansas; MARCUS V. FIPKE, UFPEL; FABIANE PINTO LAMEGO, CPPSUL. |
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Título: |
Ammonium sulfate improves the efficacy of glyphosate on South African lovegrass (Eragrostis plana) under water stress. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Weed Science, v. 69, n. 2, p. 167-176, Mar. 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
South African lovegrass (Eragrostis planaNees) is the most important weed of native pastures insouthern Brazil. Management options are limited under water-stress conditions, and glyphosatehas been the main tool for control. This study compared four salts of glyphosate applied at threegrowth stages and determined the glyphosate tolerance level. In addition, the performance ofammonium sulfate (AMS) under two soil moisture conditions (50% and 100% of water-holdingcapacity) and the effect of AMS on absorption and translocation of radiolabeled [14C]glyphosatewere evaluated. The potassium salt of glyphosate had the fastest activity across growth stages ofE. plana, which is more vulnerable to glyphosate at the panicle initiation stage. Isopropylaminesalt was the slowest-acting glyphosate formulation. Younger plants were typically more easilycontrolled than older plants at the full tillering stage. The addition of AMS increased the level ofcontrol of drought-stressedE. planacompared with glyphosate alone by increasing transloca-tion out of the treated leaf and consequently increasing the concentration of glyphosate in theprimary culm. These data can be used to plan an effective management program forE. planathat takes into account the developmental stage of desired pasture grass species |
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Thesagro: |
Controle Químico; Erva Daninha; Herbicida. |
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Categoria do assunto: |
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Marc: |
LEADER 01990naa a2200229 a 4500
001 2131159
005 2021-04-08
008 2021 bl uuuu u00u1 u #d
100 1 $aBASTIANI, M. O.
245 $aAmmonium sulfate improves the efficacy of glyphosate on South African lovegrass (Eragrostis plana) under water stress.$h[electronic resource]
260 $c2021
520 $aSouth African lovegrass (Eragrostis planaNees) is the most important weed of native pastures insouthern Brazil. Management options are limited under water-stress conditions, and glyphosatehas been the main tool for control. This study compared four salts of glyphosate applied at threegrowth stages and determined the glyphosate tolerance level. In addition, the performance ofammonium sulfate (AMS) under two soil moisture conditions (50% and 100% of water-holdingcapacity) and the effect of AMS on absorption and translocation of radiolabeled [14C]glyphosatewere evaluated. The potassium salt of glyphosate had the fastest activity across growth stages ofE. plana, which is more vulnerable to glyphosate at the panicle initiation stage. Isopropylaminesalt was the slowest-acting glyphosate formulation. Younger plants were typically more easilycontrolled than older plants at the full tillering stage. The addition of AMS increased the level ofcontrol of drought-stressedE. planacompared with glyphosate alone by increasing transloca-tion out of the treated leaf and consequently increasing the concentration of glyphosate in theprimary culm. These data can be used to plan an effective management program forE. planathat takes into account the developmental stage of desired pasture grass species
650 $aControle Químico
650 $aErva Daninha
650 $aHerbicida
700 1 $aROMA-BURGOS, N.
700 1 $aLANGARO, A. C.
700 1 $aSALAS-PEREZ, R. A.
700 1 $aROUSE, C. E.
700 1 $aFIPKE, M. V.
700 1 $aLAMEGO, F. P.
773 $tWeed Science$gv. 69, n. 2, p. 167-176, Mar. 2021.
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Embrapa Pecuária Sul (CPPSUL) |
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