Abstract:
The experiment was conducted at the Agronomy Farm of Sher-e-Bangla
Agricultural University, Dhaka during November 2017 to April 2018 to examine
the varietal performances of white maize as influenced by different level of
herbicides. The experiment comprised of two varieties viz. PSC-121 and
YANGNUO-3000 designed as V
1
and V
respectively combined with six weed
control measures viz. T
0
= No weeding, T
2
= Carfentrazone + Isoproturon 500g @
1.5 g ha
-1
(Affinity 50.75% WP), T
2
1
= Carfentrazone + Isoproturon 500g @ 2.0 g
ha
-1
(Affinity 50.75% WP), T
3
= Pendimethalin @ 2.0 l ha
-1
(Panida 50EC), T
=
Pendimethalin @ 3.0 l ha
-1
(Panida 50EC) and T
= One hand weeding at 45 DAS.
The experiment was laid out in Split Plot Design with three replications. The
highest plant height, leaf number per plant, leaf area index, crop growth rate, leaf
area duration, 100-seed weight (35.67 g), grains per cob (426.5), grain yield (8.817
t ha
-1
), stover yield (7.35 t ha
-1
5
) and biological yield (16.17 t ha
-1
), WCE (74.24%)
were achieved from T
4
. All the parameters studied were found lowest with T
. In
case of variety, PSC-121 showed the superior performance in terms of plant
height, leaf number per plant, leaf area index, crop growth rate, leaf area duration,
100-seed weight (33.898g), grains cob
yield (6.121 t ha
-1
-1
(412.0), grain yield (7.758 t ha
), biological yield (13.878 t ha
-1
-1
0
4
), stover
) and harvest index (55.651%)
over YANGNUO-3000. However, in terms of interaction, no single interaction
was superior over other alternatives. But in most of the cases T
showed the
highest findings regarding the maximum leaf area index, leaf area duration, 100seed
weight
(40.33
g),
grains
per
cob
(445.6),
grain
yield
(9.633
t
ha
), biological
yield (16.72 t ha
-1
) were recorded from T
4
V
1
,
which however, was not
significantly higher than those of T
1
V
1
(8.580 t ha
-1
), T
3
V
1
4
V
(8.593 t ha
(8.000 t ha
-1
) and the lowest performance almost in all the parameters was
recorded from T
0
V
1
.
1
-1
-1
) and T
4
V
2
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements
for the degree
of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
SEMESTER: JANUARY-JUNE, 2018
