Designer Seed for Enhancement of Yield in Cotton

Field experiments were carried out at Agricultural Research Station, Vaigai Dam, to identify the performance of designer seed on yield of cotton. Seeds fortified with KCl 1% for 6 h followed by polymer coating @ 3ml/kg + Carbendazim @ 2 g/kg + imidachloprid @ 2 ml/kg + Tichoderma viride @ 4 g/kg + Azospirilum @ 40 g/kg. The effect was more beneficial through increased field emergence (86%) population at maturity/plot (57.34), number of sympodial branches (13.62), number of. bolls/plant (64.50), kapas yield/plant (71.02 g), kapas yield/plot (2.43 kg) and seed yield/plant (43.72 g) compared to untreated control (73%, 48, 12.04, 50.99, 59.67 g, 1.93 kg and 37.9 g, respectively for field emergence, population at maturity/plot, number of sympodial branches, number of. bolls/plant, kapas yield/plant (g), kapas yield/plot (kg) and seed yield/plant (g). Days to 50% flowering and pest and disease incidences (%) were higher in untreated control compared to control. The per cent decrease over control was 12.5 and 52.4%, respectively for days to 50% flowering and pest and disease.