Resistance Evolution to EPSPS Inhibiting Herbicides in False Barley (Hordeum murinum) Harvested in Southern Spain
Fecha de publicación2020-07-10
Vázquez-García, José G.
Alcántara-de la Cruz, Ricardo
Prado, Rafael de
MetadatosMostrar el registro completo del ítem
A failure of the EPSPS-inhibiting herbicide glyphosate to control several populations of Hordeum murinum subsp. leporinum (or H. murinum) occurred in southern Spain after more than fifteen applications in both crop (olive, orchards, and citrus) and non-crop (dry areas, roadsides and ditches) areas. Eight out of 18 populations studied were resistant (R) to glyphosate with R factors higher than four based on GR50. These populations also had the highest values of LD50 and the lowest levels of shikimic acid accumulation. Two adjuvants tested increased glyphosate efficacy in both susceptible (S) and R populations thanks to better spray foliar retention. Moreover, PS I-, PS II-, and ACCase-inhibiting herbicides, in pre- or post-emergence, proved to be the best chemical alternatives with different sites of action (SoA) to control both S and glyphosate-R populations. This study represents the first report worldwide of glyphosate resistance in H. murinum found in very different crop and non-crop areas from southern Spain. To design chemical strategies to implement integrated weed management programs for glyphosate-R H. murinum, both adjuvants and herbicides with alternative SoA as well as application timings should be considered.
Es parte deAgronomy-Basel, 2020, vol. 10, num. 7, p. 992
Proyectos de investigación europeos
Excepto si se señala otra cosa, la licencia del ítem se describe comocc-by (c) Vazquez-Garcia, José G. et al., 2020
Showing items related by title, author, creator and subject.
Reduced absorption and impaired translocation endows glyphosate resistance in Amaranthus palmeri harvested in GR soybean from Argentina Palma-Bautista, Candelario; Torra Farré, Joel; García, María J.; Bracamonte, Enzo; Rojano-Delgado, Antonia M.; Alcántara-de la Cruz, Ricardo; Prado, Rafael de ((c) American Chemical Society, 2019, 2019)Amaranthus palmeri S. Watson is probably the worst glyphosate-resistant (GR) weed worldwide. The EPSPS (5-enolpyruvylshikimate-3-phosphate-synthase) gene amplification has been reported as the major target-site-resistance ...
Accumulation of target gene mutations confers multiple resistance to ALS, ACCase and EPSPS inhibitors in Lolium species in Chile Vázquez-García, José G.; Alcántara-de la Cruz, Ricardo; Palma-Bautista, Candelario; Rojano-Delgado, Antonia M.; Cruz-Hipólito, Hugo E.; Torra Farré, Joel; Barro, Francisco; Prado, Rafael de (Frontiers Media, 2020-10-28)Different Lolium species, common weeds in cereal fields and fruit orchards in Chile, were reported showing isolated resistance to the acetyl CoA carboxylase (ACCase), acetolactate synthase (ALS) and 5-enolpyruvylshikimat ...
Distribution of Glyphosate-Resistance in Echinochloa crus-galli Across Agriculture Areas in the Iberian Peninsula Vázquez-García, José G.; Rojano-Delgado, Antonia M.; Alcántara-de la Cruz, Ricardo; Torra Farré, Joel; Dellaferrera, Ignacio; Portugal, João M.; Prado, Rafael de (Frontiers Media, 2021-02-12)The levels of resistance to glyphosate of 13 barnyard grass (Echinochloa crus-galli) populations harvested across different agriculture areas in the Southern Iberian Peninsula were determined in greenhouse and laboratory ...