Abstract:
The experiment was conducted at the research farm of Sher-e-Bangla
Agricultural University, Sher-e-Bangla Nagar, Dhaka, Bangladesh during Boro
season from December 2016 to May 2017 to study the influence of nitrogen
and phosphorus levels on yield and seed quality of rice. The experiment
comprised as two factors, i.e. different fertilizer doses i.e. F
0
= No fertilizer, F
1
= 50% less than recommended dose of fertilizer, F
2
= 25% less than
recommended dose of fertilizer, F
3
= Recommended dose of fertilizer, F
4
=25%
more than recommended dose of fertilizer, F
5
= 50% more than recommended
dose of fertilizer, F
6
= 75% higher than recommended dose of chemical
fertilizer; and two varieties i.e. V
1
= BRRI dhan28, V
2
= BRRI dhan74. The
experiment was conducted following split plot design with three replications.
The result revealed that fertilizer dose F
4
(25% higher than recommended dose)
gave highest plant height (91.24 cm), effective tillers hill
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(11.96), panicle
length (19.70 cm), 1000 grains weight (29.42 g) and grain yield (6.91 t ha
).
On the other hand, V
1
(BRRI dhan28) was superior by producing tallest plant
(90.58 cm) which may be attribute the highest grain yield (5.96 t ha
).
Interaction of F
4
V
1
was also superior in producing the highest yield (7.53 t ha1).
In case of seeds quality aspect, F
4
(25% higher than recommended dose)
fertilizer dose gave the highest germination percentage (92.66%), shoot length
(17.55 cm), root length (8.80 cm), shoot dry weight (20.86 mg) and root dry
weight (14.60 mg). The variety V
2
gave highest germination percentage
(87.42%), shoot length (16.58 cm), root length (8.75 cm), shoot dry weight
(18.95 mg) and root dry weight (16.56 mg). From the result, it can be
concluded that F
4
(25% higher than recommended dose) and V
2
(BRRI
dhan28) most suitable for yield and seed quality.
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Description:
A Thesis
Submitted to the Institute of Seed Technology,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE
IN
SEED TECHNOLOGY
SEMESTER: JANUARY-JUNE, 2017