EFFECT OF GA 3 AND POTASSIUM ON GROWTH AND YIELD OF CABBAGE (Brassica oleracea var. capitata L.)

Abstract

The experiment was conducted at the horticulture Farm. Sher-e-I3angla Agricultural University. Dhaka. during the period of October 2007 to Februaty 2008 to study the effect of GA3 and potassium on growth and yield of cabbage. The experiment was laid out in Randomized Complete Block Design (RCI3D) with three replications. The experiment considered of two factors: Factor A: three concentration of GA. Gor Oppm GA3 (it= 65ppm GA3 and G 2= 85 ppmCiAs; Factor B: four levels of potassium Ko0 kg K2 0Iha, Ki= 120 kgK2 0/ha, Kr 135 kgK 20fha and K3=150 kgK20/ha. Incase of GA; the highest yield (62.87 t/ha) was observed from (I and the lowest (52.64 i/ha) was found from control. The highest yield (69.57 I/ha) was recorded from K3 and the lowest (47.75 i/ha) were observed from control. For combined effect-the highest yield (76.67 i/ha) was found from 0 1 K3 and the lowest (46.94 1/ha) from control. Economic analysis revealed that G 1 K was the best treatment combination in respect ol net return (Tk. 225022) with a benefit cost ratio 2.42. It may be concluded that 65 ppm GA3 with 150 K2 0 / ha was found suitable for growth and yield of cabbage.