IMPACT OF ORGANIC MANURE TO COMBAT DROUGHT STRESS OF WHEAT
Date
2018
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY
Abstract
A pot experiment was conducted at the net house of Sher-e-Bangla Agricultural
University, Dhaka-1207 during the rabi season of the year 2017-18 to evaluate the
impact of organic manure to combat drought stress of wheat. The 3×4 factorial
experiment was laid out in a Completely Randomized Design (CRD) with three
replications. Factor A: Different organic manure [F
0
1
, F
2
= Vermicompost 7 t ha
-1
= Control, F
1
= Cowdung 10 t ha
] and Factor B: Drought in different growth stages [D
0
=
Control, D
1
= Drought in crown root initiation stage (20-29 DAS), D
2
= Drought in
booting stage (45-54 DAS), D
3
= Drought in anthesis stage (55-64 DAS)]. BARI Gom28
was
used
as
test
crop.
Significant
variation
was
observed
on
growth,
yield
and
yield
contributing
parameters.
In
the
case
of
organic
manure,
the
tallest
plant
(24.84,
35.77,
56.60
and
78.42 cm,
respectively)
at
20,
40, 60 DAS
and
at
harvest;
highest
number
of
effective
tillers plant
-1
(8.33), spike length (14.61 cm), number of spikelet spike
(16.33), number of grains spikelet
-1
(7.67), number of grains spike
-1
(37.00), weight of
1000 seed grain (44.93 g), grain yield (4.39 g plant
-1
), straw yield (4.69 g plant
),
biological yield (9.08 g plant
-1
) and harvest index (48.35%) were recorded from F
1
. In
the case of drought stress, the tallest plant (23.31, 34.97, 53.72 and 75.07 cm,
respectively) at 20, 40, 60 DAS and at harvest; highest number of effective tillers plant
1
(9.67), spike length (15.22 cm), number of spikelet spike
-1
(17.67), number of grains
spikelet
-1
(8.33), number of grains spike
-1
(39.00), weight of 1000 seed grain (45.14 g),
grain yield (4.72 g plant
-1
), straw yield (5.05 g plant
-1
), biological yield (9.77 g plant
)
and harvest index (48.31%) were recorded from D
0
which was followed by D
2
. In the
case of interaction, the maximum plant height (27.66, 48.10, 63.15 and 78.56 cm,
respectively) at 20, 40, 60 DAS and at harvest; highest number of effective tillers plant
1
(10.33), spike length (16.12 cm), number of spikelet spike
-1
(18.00), number of grains
spikelet
-1
(9.67), number of grains spike
-1
(40.00), weight of 1000 seed grain (48.37 g),
grain yield (4.89 g plant
-1
), straw yield (5.18 g plant
-1
1
) and harvest index (48.56%) were recorded from F
1
), biological yield (10.07 g plant
D
0
. It can be concluded that
cowdung may be suggested to apply in drought condition.
Description
ubmitted to the Department of Agronomy
Sher-e-Bangla Agricultural University, Dhaka
in partial fullfilment of the requirements
for the degree of
MASTER OF SCIENCE (M.S.)
IN
AGRONOMY
Keywords
ORGANIC MANURE, DROUGHT STRESS OF WHEAT