Conyza bonariensis biotypes resistant to the glyphosate in southern Brazil
By L. Vargas, Bianchi, Rizzardi, D. Agostinetto, T. D. Magro. 2007
94 citations recorded by the source corpus.
ABSTRACT - Glyphosate is a non-selective herbicide used for over 20 years to control weeds inRio Grande do Sul. Horseweed ( Conyza bonariensis ) is a common weed in Rio Grande do Sulandtraditionallysensitive toglyphosate.However,during the lastyears,some horseweed plantshavenotshownsignificantinjurysymptomsaftertreatmentwithglyphosate,suggestingthattheyareresistanttothisherbicide.Aimingtoevaluatetheresponseof apopulationof horseweedplantsto glyphosate, one field and twogreenhouse experiments were carried out. The field experimenttreatmenthadincreasingratesofglyphosate(0,360,720,1,440,2,880and5,760 g ha -1 ),andalsotheherbicidesparaquatand2,4-Dasstandards.Thegreenhouseexperimentshadincreasingratesofglyphosate (0, 360, 720, 1,440, 2,880 and 5,760 g ha -1 ) plus the above listed check herbicidessprayed on biotypes considered resistantand on plants of one susceptible biotype. Inthe secondgreenhouse experiment, the treatments were increasing rates of glyphosate (720, 1,440 and 1 Recebido para publicacao em 9.1.2007 e na forma revisada em 31.8.2007.
Subfields: Plant Science, Pollution, Soil Science
View Paper: https://www.semanticscholar.org/paper/37503948971ddcdb580fc8029db1ccfe9381a353
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In Plant Science
Citations in the corpus
- Detection of Sourgrass (Digitaria insularis) Biotypes Resistant to Glyphosate in Brazil (2011, background): “In Brazil, cases of resistance to glyphosate already have been identified for biotypes of hairy fleabane [Conyza bonariensis (L.) Cronquist] (Vargas et al. 2007; Lamego and Vidal 2008), horseweed [Conyza canadensis (L.) Cronquist] (Lamego and Vidal 2008), wild poinsettia (Euphorbia heterophylla L.)…”