Abstract:
The experiment was carried out at the Horticultural Farm of Sher-e-Bangla
Agricultural University, Dhaka during the period from October 2018 to March 2019
to evaluate the growth and yield of cabbage as influenced by different levels of boron
and gibberellic acid (GA
3
). The experiment comprised of two different factors such
as, Factor A: four GA
3
levels viz. G
0
= Control (No GA
3
ii
), G
1
= 70 ppm GA
3
=
100 ppm GA
3
and G
3
= 130 ppm GA
3
and Factor B: three levels of boron application
viz. B
0
= Control (No B), B
1
= 4 kg B ha
-1
and B
2
= 8 kg B ha
-1
. The experiment was
set up in Randomized Complete Block Design with three replications. Regarding GA
3
application, the treatment G
2
(100 ppm GA
3
) produced the highest marketable
cabbage yield (44.13 t ha
-1
) and G
0
(No GA
3
) produced the lowest (39.43 tha
). For
boron (B) application, B
1
(4 kg B ha
-1
) gave the highest marketable cabbage yield
(45.38 t ha
-1
(100 ppm GA
3
) B
0
(No B) produced the lowest (36.57 tha
+ 4 kg B ha
-1
-1)
. For combined effect, G
2
) gave the highest marketable cabbage yield (47.71 t ha
)
and the lowest (34.49 t ha
-1
) was from G
0
B
0
(No GA
3
+ No B ha
). Considering
economic analysis, G
2
B
1
-1
showed the highest gross return (Tk 572520), net return (Tk
392400) and BCR (3.18) whereas G
0
B
0
gave the lowest gross return (Tk. 413880),
net return (Tk. 241841) and BCR (2.40). So, it can be concluded that 100 ppm GA
3
and 4 kg Boron is suitable for cabbage production compare to other treatment
combinations.
