نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه کردستان، سنندج، ایران.
2 دانشیار گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه رازی، کرمانشاه، ایران.
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
The emergence of herbicide resistance in weeds is one of the factors threatening yield reduction in wheat fields in Iran. A greenhouse study was conducted in 1401 in the research greenhouse of the Faculty of Agriculture of the University of Kurdistan in order to investigate the resistance of weeds to common herbicides in wheat fields in some western cities of the country, including Kamyaran, Dehgolan, Saqqez, Sanandaj, Shushtar, Ilam and Kermanshah. At the end of the growing season, seeds were collected in fields where farmers were dissatisfied with the effectiveness of herbicides in controlling weeds and suspected resistance. Results showed that out of 44 examined stands, three populations of Avena ludoviciana showed resistance to Clodinafop propargyl. The results of investigating the effect of six herbicides used in wheat on clodinafop-propargyl resistant masses showed that all of them were significantly more sensitive to the two Sulfosulfuron and mesosulfuron + iodosulfuron + diflufenican, indicating a negative cross-resistance in these populations. One of the reasons for negative cross-resistance in clodinafop-resistant stands is that these stands are far less competent than sensitive stands. Negative cross-resistance in clodinafop-resistant weeds can be considered a weakness in adopting strategies for managing weeds resistant to this herbicide.
کلیدواژه‌ها [English]
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