Effect of Different Herbicides on Weed Growth and Yield of Garlic (allium Sativum L.)

Field experiments were conducted on medium black soil to know the effect of different herbicides on growth and yield of garlic. The experiment was conducted with BLG-1 genotype. The experiment was laid out in Randomized Block Design with three replications having fifteen treatments each. The treatments consisted of six herbicides with two concentrations each along with two manual weeding treatments and an unweeded control. The cultural practices were practiced as per the package of practices of University of Agricultural Sciences, Dharwad. Significant differences were observed among the treatments for all the weed parameters at all the stages of observation. Among herbicides, chlorimuron @ 9 and 12 g a.i. ha-1 recorded the least population of weeds (7.39 and 8.20, respectively) and was followed by chlomazone @ 1.0 and 1.5 kg a.i. ha-1 (9.74 and 11.84, respectively). Application of chlorimuron @ 9 and 12 g a.i.ha-1 recorded the lowest fresh weight (14.94 and 15.98 g, respectively) and dry weight (3.38 and 2.49 g, respectively) of weeds and was followed by application of chlomazone @ 1.0 and 1.5 kg a.i. ha-1 (22.35 and 24.30 g of fresh weight and 4.56 and 5.70 g of dry weight, respectively). Yield of garlic bulbs varied significantly wherein application of Oxyfluorfen @ 0.10 g a.i. ha-1 resulted in the production of highest yield ( 37.08 q/ha) and was on par with the application of Pendimethalin @ 1.0 kg a.i. ha-1 (36.22 q/ha) followed by Oxyfluorfen @ 0.20 g a.i. ha-1 (32.91 q/ha) and Pendimethalin @ 1.5 kg a.i. ha-1 (31.31 q/ha). The lowest yield (14.79 q/ha) was recorded in the unweeded control.