Abstract:
An experiment was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural
University, Dhaka during the period from October 2013 to March 2014. The
experiment consisted of two factors: Factor A: Planting time (three levels) as - T
= 05
Nov; T
2
= 20 Nov and T
3
= 05 Dec and Factor B: Gibberellic acid (four levels) as- G
=
0 ppm (control); G
1
= 75 ppm ; G
2
= 95 ppm and G
ii
3
= 115 ppm GA
, respectively. The
two factors experiment was laid out in Randomized Complete Block Design with three
replications. The variety of cabbage was Atlas-70. Due to different planting time, the
maximum thickness of head (13.3 cm) and the highest marketable yield (49.1 t/ha) was
obtained from T
2
3
and the minimum thickness of head (12.5 cm) and the lowest
marketable yield (45.9 t/ha) was obtained from T
3
. For GA
, the maximum thickness
of head (14.2 cm) and the highest marketable yield (54.7 t/ha) was found from G
3
and
the minimum thickness of head (11.4 cm) and the lowest marketable yield (41.2 t/ha)
was found from G
0.
For combined effect
the maximum thickness of head (14.5 cm)
and the highest marketable yield (59.4 t/ha) was found from T
,
2
G
and the minimum
thickness of head (10.8 cm) and the lowest marketable yield (37.1 t/ha) was found
from T
3
G
0.
Economic analysis revealed that T
2
G
2
2
gave the maximum benefit cost
ratio (2.57). So, 20 Nov planting along with 95 ppm GA
was the best for growth and
yield of cabbage.
