Regulation of flowering in African marigold (Tagetes erecta L.) by the application of GA₃ ethrel and MH

An experiment was conducted at Sardarkrushinagar Campus of Gujarat Agricultural University with 10 treatment viz., three concentrations each of GA₃,100, 150 and 200 ppm, Ethrel 250, 500 and 750 ppm and MH 250,500 and 750 ppm and with control, in a Randomized Block Design with four replications on African marigold to study their effects on regulation of flowering during rabi season (2002-2003). Among all the treatments GA₃ at 200 ppm registered maximum flower yield per plant (82.62 g), and yield per hectare (9617.48 kg) as compared to control (59.46 g and 7018.37 kg, respectively) GA₃ 150 ppm was per with GA₃ 200 ppm.