The Effect of Rimsulfuron and Metribuzin Mixture on Weed Control and Antioxidant Enzyme of Potato

In order to evaluate mixture of rimsulfuron (Titus) and metribuzin (Sencor) herbicides on weed control, yield of potato (Solanum tuberosum L.) a factorial experiment conducted on the base of Randomized Complete Block Design in 3 replications and use of Agria cultivar of potato in Research Field of Mohaghegh Ardabili University at 2016. The treatments consist of rimsulfuron herbicide in 0, 12.5, 25, 37.5 and 50 gr ai/ha and metribuzin in 0, 153.25, 306.50, 459.75 and 613 gr ai/ha for 5 herbicide mixture percentage (as: 0:613, 12.5:459.75, 25:306.50, 37.5:153.25 and 50:0) and the second factor was different time of application of this herbicides include (pre-plant and potato emergence). In order to results of experiment, use of rimsulfuron + metribuzin herbicide mixture improved the efficacy of each one of herbicides in weed control by means of lowering weed density. The results of stem yield and total yield of potato tuber showed that use of 306.50 gr ai/ha metribuzin + 25 gr ai/ha rimsulfuron in emergence stage induced 10.53% and 61.83% yield of stem and total yield in comparison to weedy