Varietal Reaction of Sorghum to Herbicides1 Raghunatha G., Research Assistant, Jagannath M. K., Assistant Biometrician, Rajashekara B. G., Assistant Agronomist, Krishnamurthy K., Proftssor of Agronomy 1Contribution from the PL-480 Project, Agronomy Division, University of Agricultural Science, Bangalore-560024. Abstract Three herbicides (2, 4-D, Banvel-D and Atrazine), each at two doses (0.5 and 1 0 kg; 2.2 and 4.4 L and 1.0 and 2,0 kg. per ha, respectively) were tried on six sorghum genotypes [CSH-1, CBE-X (MS 2219 x IS 3541). Swarna. M-35-1, D-340 and Neerjola] to study the differential response of these to herbicides. The effect of time lag between herbi-cidal spray and sowing the crop was also studied. Performance was best in CSH-1 with Atrazine, and in D-340 with 2, 4-D, while others were less selective. Atrazine favoured better seedling vigour and gave satisfactory weed control and its effect persisted longer in soil Crop sown two weeks after spraying lower doses of herbicides gave better germination. plant establishment seedling vigour. Top |