Abstract
In order to study the response of wheat (Triticum aestivum) cv. Chamran and wild barley (Hordeum spontaneum) to different herbicides, a pot dose response experiment was conducted in a completely randomized design with three replication at Research Greenhouse of Ferdowsi University of Mashhad in 2008. Different doses of herbicides including Clodinafop propargyl, Pinoxaden, Sulfosulfuron, and Metsulfuron-methyl+ Sulfosulfuron, were applied post-emergence at 2-3 leaf stage of wheat and wild barley and Isoproturon+Diflufenican was applied pre-emergence. Plant dry weight of each treatment was determined three weeks after herbicide application, then GR50, GR25, and herbicide selectivity indices were determined for each herbicide. Results showed that due to wild barley high tolerance, no herbicide could completely control this weed in wheat without injury to wheat. Among all herbicides, Metsulfuron-methyle+Sulfosulfuron was the best one for selective control of wild barley in wheat, which reduced wild barley biomass by 32% in recommended dose. Clodinafop propargyl and Pinoxaden, even at higher doses couldn’t reduce wild barley biomass and can not be used for wild barley control in wheat. Sulfosulfuron had little influence on wild barley at recommended dose, but at higher doses reduced both wild barley and wheat biomass significantly.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
