2005
DOI: 10.1590/s0103-90162005000500007
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Resistence of Euphorbia Heterophylla L. to ALS-inhibiting herbicides in soybean

Abstract: Herbicides are widely used in soybean for weed control, and the selection pressure attributed to the repeated use of herbicides with similar modes of action on the same site has caused selection for resistant biotypes within and among previously susceptible species, such as Euphorbia heterophylla L., in relation to ALS enzyme inhibitors, in the states of Paraná, Rio Grande do Sul, and São Paulo, Brazil. Seeds of E. heterophylla were collected to examine possible new cases of resistant populations and to test a… Show more

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Cited by 9 publications
(7 citation statements)
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References 11 publications
(15 reference statements)
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“…Imazethapyr provided inconsistent control of Bidens pilosa (63-95%) and Eleusine indica (76-90%) and the unsatisfactory control of Euphorbia heterophylla (48%). Generally, imazethapyr is highly effective on Euphorbia heterophylla susceptible populations (Gelmini et al, 2005). The weed control performance and previous herbicide history at the SOR location suggests that this population of Euphorbia heterophylla may be ALS-resistant.…”
Section: Weed Controlmentioning
confidence: 96%
“…Imazethapyr provided inconsistent control of Bidens pilosa (63-95%) and Eleusine indica (76-90%) and the unsatisfactory control of Euphorbia heterophylla (48%). Generally, imazethapyr is highly effective on Euphorbia heterophylla susceptible populations (Gelmini et al, 2005). The weed control performance and previous herbicide history at the SOR location suggests that this population of Euphorbia heterophylla may be ALS-resistant.…”
Section: Weed Controlmentioning
confidence: 96%
“…Chapadão do Sul -MS, 2010. Em trabalho de Gelmini et al (2005), a aplicação de amonio-glufosinate isolado em doses de 300 e 600 g ha -1 , também proporcionaram controle eficiente (>93,0%) de E. heterophylla até 20 DAA, sem diferenças entre as doses. Contudo, no presente trabalho, as doses isoladas de amonio-glufosinate abaixo de 500 g ha -1 promoveram controle inferior às misturas com pyrithiobac-sodium aos 35 DAA.…”
Section: Resultsunclassified
“…O valor de FR do biótipo 23 foi inferior ao obtido para a MS da parte aérea de EPHHL resistente a imazethapyr, identificado em Assis (SP) (Gelmini et al, 2001), e para percentual de controle de EPHHL resistente a imazethapyr, de Cafelândia (PR) (Gazziero et al, 1998). O FR obtido no biótipo 23 foi similar ao de um biótipo do Mato Grosso do Sul (Gelmini et al, 2005). Os valores de FR para imazethapyr identificados por Gelmini et al (2001Gelmini et al ( , 2005 foram similares aos obtidos para o biótipo 4 do presente ensaio.…”
Section: Resultsunclassified
“…O FR obtido no biótipo 23 foi similar ao de um biótipo do Mato Grosso do Sul (Gelmini et al, 2005). Os valores de FR para imazethapyr identificados por Gelmini et al (2001Gelmini et al ( , 2005 foram similares aos obtidos para o biótipo 4 do presente ensaio.…”
Section: Resultsunclassified