Abstract:
An experiment was conducted at the farm of Sher-e-Bangla Agricultural University,
during the period of September 2021 – March, 2022 to study the effect of nitrogen and
phosphorus on growth and seed yield of gimakalmi. Two factors viz., Factor A: 4
nitrogen levels; N
0
(control), N
1
(60 kg N ha
-1
), N
2
(90 kg N ha
-1
) and N
3
)
and Factor B: 4 phosphorus levels viz., P
0
(control), P
1
(20 kg P ha
-1
(120 kg N ha
), P
2
)
and P
3
(40 kg P ha
-1
) were considered for the present study. The experiment was laid out
in a randomized complete block design (RCBD) with three replications. Among nitrogen
treatments, N
2
showed the best performance on seed yield and quality and gave the
highest seed yield (1.79 t ha
-1
), seed germination percentage (85.75%) and seed vigor
index (1269.00) compared to other treatments. Among different phosphorus levels, P
2
gave the best results on seed yield and quality parameters and gave the highest seed yield
ha
-1
(1.85 g), seed germination percentage (85.18%) and seed vigor index (1261.00).
Treatment combination of N
2
P
2
registered the highest number of branches plant
(22.40),
pods plant
-1
(835.90), seed weight plant
-1
(20.88 g), 1000 seed weight (6.24 g), seed yield
plot
-1
(501.10 g), seed yield ha
-1
(2.32 t), stover yield ha
-1
(3.04 t) and harvest index
(43.28%). Regarding quality parameters, the highest seed germination (88.20%), shoot
length (8.14 cm), root length (7.93 cm) and seed vigor index (1417.00) of seedlings after
12 days of germination were also recorded from the seeds produced from the treatment
combination of N
2
P
2
. So, the treatment combination, N
2
P
2
(90 kg N ha
-1
1
)) can be considered as best compared to other treatment combinations.
Description:
A Thesis
Submitted to the Institute of Seed Technology,
Sher-e-Bangla Agricultural University, Dhaka,
In Partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
SEED TECHNOLOGY
