Abstract:
The experiment was conducted in the Horticulture Farm, Sher-e-Bangla
Agricultural University, Dhaka during November 2011 to June 2012.The
experiment consisted with two factors. Factor A: Three levels of corm size i.e.
C
1
: Small (11-20 g); C
2
: Medium (21-30 g) and C
: Large (31-40 g) corm and
Factor B: Five levels of zinc as Zn
3kg and Zn
4
0
3
: 0 kg (control), Zn
1
: 1 kg, Zn
: 4 kg/ha respectively. The experiment was laid out in a
randomized complete block design with three replications. For corm size,
highest no. of spike (290700/ha) and corm yield (15.67 t/ha) was from C
and
lowest no. of spike (251600/ha) and corm yield (12.54 t/ha) was from C
. For
zinc, highest no. of spike (297800/ha) and corm yield (16.44 t/ha) was from
Zn
while lowest no. of spike (238500/ha) and corm yield (11.51 t/ha) was from
Zn
3
. For interaction effect, highest no. of spike (337800/ha) and corm yield
(19.69 t/ha) was from C
0
3
Zn
while lowest no. of spike (231100/ha) and corm
yield (10.31 t/ha) was from C
3
1
Zn
0
.
2
The highest BCR (2.82) was from C
and lowest (1.90) from C
2
Zn
. So, large size corm with zinc at 3kg /ha is the
best for growth, flowering and yield of gladiolus.
