EFFECT OF FOLIAR APPLICATION OF GIBBERELIC ACID AND ZINC ON GROWTH AND YIELD OF CABBAGE

Abstract

A study was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural University, to find out the effect of foliar application of different levels of gibberellic acid and zinc on growth and yield of cabbage. The experiment consisted of two factors such as: Factor A: three levels of gibberellic acid viz., G : control, G 1 : 100 ppm, G 2 : 150 ppm GA 3 and Factor B: three levels of zinc viz., Z : control, Z 1 : 50 ppm, Z : 100 ppm Zn. The experiment was laid out in Randomized Complete Block Design with three replications. In case of different levels of GA 2 , the highest head diameter (22.56 cm), head thickness (14.88 cm), fresh weight of head (1.96 kg), dry matter of head (6.33 %), yield (81.68 t/ha) were found from G

while the lowest head diameter (19.28 cm), head thickness (12.32 cm), fresh weight of head (1.50 kg), dry matter of head (5.45 %), yield (62.50 t/ha) from G . For different levels of zinc, the highest head diameter (22.42 cm), head thickness (14.87 cm), fresh weight of head (1.89 kg), dry matter of head (6.13 %), yield (78.75 t/ha) were recorded from Z whereas the lowest head diameter (19.39 cm), head thickness (12.36 cm), fresh weight of head (1.57 kg), dry matter of head (5.53 %), yield (65.55 t/ha) from Z 2 . Due to interaction effect, the highest head diameter (23.07 cm), head thickness (15.33 cm), fresh weight of head (2.13 kg), dry matter of head (6.66 %), yield (88.75 t/ha) were recorded from G 0 where as the lowest head diameter (18.50 cm), head thickness (12.00 cm), fresh weight of head (1.23 kg), dry matter of head (5.00 %), yield (51.25 t/ha) from G . The highest benefit cost ratio (2.57) was noted from the combination of G and the lowest (1.57) from G 0 Z From growth, yield and economic point of view, it is apparent that the combination of 150 ppm GA 0. with 100 ppm Zn was suitable for cabbage.