Evaluation of Striga Suppression Effect Herbicides (Chlorsulfuron 75% WDG) on Sorghum ((Sorghum bicolor (L.) Moench) in Western Tigray, Ethiopia

Striga is the major sorghum production constraints in western Tigray, Ethiopia. Three Striga sick plot locations (Rawyan, Adebay and Beaker Kebeles) were selected during 2019 main cropping season. The objective of the study was to evaluate the Striga suppression effect of Chlorsulfuron 75% WDG (Turkey and china) product herbicides on sorghum. The experiment was laid out in randomized complete block design (RCBD) with three replications and ten (10gram/hectare) Chlorsulfuron 75% WDG were diluted in water and applied three weeks after planting. Striga count at 60 days after planting, at harvesting and grain yield were recorded and analyzed using GenStat 18version. The treatments showed statistically significant difference (p<001) in Striga and grain yield. But, there was no significant variation between the tested herbicides. The highest Striga count (1602.3/plot) was recorded from control followed by china product (365/plot) and turkey (303.3). The highest mean Striga reduction (81.07%) was recorded from Turkey followed by china (77.22%). The highest Striga count was recorded in Adebay (1298.33) followed by Rawyan (631.33) and Beaker (345).17.98 quintal/hectare, 16.11 and 9.55 yield was recorded in Rawyan, beaker and Adebay respectively The highest grain yield 18.33 quintal/hectare was recorded from Turkey product which is 50.19% yield advantage, 16.48 quintal/hectare 44.6% yield advantage in china product while 9.13quintal/hectare from control. From the study result recommended that both the Turkey and china product herbicides will be promoted to further demonstration and popularization at farm level.