Univrsity of Tehran Press Iranian Journal of Field Crop Science 2008-4811 55 4 2024 12 21 Investigating the effectiveness of sulfosulfuron (Apirus) and mesosulfuron methyl + iodosulfuron methyl-sodium (Atlantis) and salicylic acid in controlling wheat weeds. Investigating the effectiveness of sulfosulfuron (Apirus) and mesosulfuron methyl + iodosulfuron methyl-sodium (Atlantis) and salicylic acid in controlling wheat weeds. 35 45 99483 10.22059/ijfcs.2024.371041.655058 FA Shokoofe Shahverdi Department of Plant Genetics and Plant Production. School of Agriculture. University of Lorestan. Khorramabad. Iran Ali Asghar Chitband Herbal Medicine Group. School of Agriculture. University of Lorestan. Khorramabad. Iran Abdolreza Ahmadi Herbal Medicine Group. School of Agriculture. University of Lorestan. Khorramabad. Iran Journal Article 2024 01 17 In order to investigate the herbicides sulfosulfuron and mesosulfuron methyl + iodosulfuron methyl-sodium in pure form and together with salicylic acid in the control of weeds, yield and yield components of wheat, a study was carried out in 2021 in the research farm of Lorestan University. The experiment was carried out factorially based on a randomized complete block design (RCBD) in three replications. The first factor included the application of the recommended dose and 50% of each of sulfosulfuron (Apirus, 75% WG) and mesosulfuron methyl + iodosulfuron methyl-sodium (Atlantis, 1.2% OD) herbicides. The second factor was foliar spraying of salicylic acid in combination with herbicide treatments. The results showed that the lowest density (0.2) and dry weight (0.4242) was related to Asperugo procumbens L. Also, the reduction of dry weight of weeds and the highest number of seeds per spike, height, number of spikes per square meter, seed yield and chlorophyll (a and b) were obtained from the application of (Apirus + Atlantis with salicylic acid). Based on the obtained results, it is recommended to use salicylic acid along with herbicides to increase wheat yield and reduce weeds. In order to investigate the herbicides sulfosulfuron and mesosulfuron methyl + iodosulfuron methyl-sodium in pure form and together with salicylic acid in the control of weeds, yield and yield components of wheat, a study was carried out in 2021 in the research farm of Lorestan University. The experiment was carried out factorially based on a randomized complete block design (RCBD) in three replications. The first factor included the application of the recommended dose and 50% of each of sulfosulfuron (Apirus, 75% WG) and mesosulfuron methyl + iodosulfuron methyl-sodium (Atlantis, 1.2% OD) herbicides. The second factor was foliar spraying of salicylic acid in combination with herbicide treatments. The results showed that the lowest density (0.2) and dry weight (0.4242) was related to Asperugo procumbens L. Also, the reduction of dry weight of weeds and the highest number of seeds per spike, height, number of spikes per square meter, seed yield and chlorophyll (a and b) were obtained from the application of (Apirus + Atlantis with salicylic acid). Based on the obtained results, it is recommended to use salicylic acid along with herbicides to increase wheat yield and reduce weeds. https://ijfcs.ut.ac.ir/article_99483_5888d434f0e839ba2a32c7d48a2f54ed.pdf