INFLUENCE OF GA3 AND NITROGEN ON GROWTH AND YIELD OF CABBAGE

Abstract

The effect of different levels of GA 3 and nitrogen were tested on the cabbage cultivar Atlas 70' in the Horticulture Farm, Sher-e-Bangla Agricultural University, Dhaka during November 2015 to March 2016. The experimental plot was laid out in Randomized Complete Block Design (RCBD) with three replications. The twofactorial experiment

was consisted of three levels of GA 3 ; G 0 = 0 ppm, G = 60 ppm and G 2 = 80 ppm and four levels of nitrogen; N 0 = 0 kg/ha, N 1 1 = 210 kg/ha, N = 240 kg/ha, N = 270 kg/ha. In case of gibberellic acid, the highest yield (87.87 t/ha) was obtained from G 1 3 and lowest yield (74.29 t/ha) was obtained from G 2 . For nitrogen, the highest yield (85.41 t/ha) was obtained from N 2 and lowest yield (70.83 t/ha) was obtained from N 0 . Among all treatments combinations G 1 N 2 produced the highest yield (97.77 t/ha) and G 0 N 0 produced lowest yield (68.88 t/ha). So, 60 ppm GA 3 and 240 kg N/ha may be used for cabbage cultivation. 2