Abstract:
An experiment was conducted at the Agronomy Farm of Sher-e-Bangla Agricultural
University, Dhaka to evaluate ‘the growth and yield of transplanted aus rice as influenced
by variety and number of seedling per hill’. The experiment comprised two factors; (1)
four varieties viz. V
1
(BRRI dhan 48), V
2
(BRRI dhan 43), V
3
(BRRI dhan 42) and V
(ACI hybrid-2) and (2) four seedling treatments viz, H
1
(1 seedling per hill), H
(2
seedlings per hill), H
3
(3 seedlings per hill) and H
(4 seedlings per hill). Data were
collected on plant height (cm), number of tillers per hill, number of leaves per hill,
number of panicles per hill, number of grains per panicle, 1000-seed weight, grain yield,
stover yield and harvest index (%). Three effects have been considered to evaluate the
experiment such as (i) Effect of variety, (ii) Effect of seedling per hill and (iii) Interaction
effect of variety and seedling per hill. Results showed that The variety, V
4
(BRRI dhan
42), showed the highest plant height (94.95 cm) but the highest number of tillers per hill
(23.62), number of leaves per hill (161.50), number of panicles per hill (16.67), number
of grains per panicle (104.40), 1000- seed weight (20.82 g), grain yield (3.743 t/ha),
stover yield (5.55 t/ha) and harvest index (40.13%) was obtained from V
(ACI hybrid-2).
In terms of seedling per hill, H
(4 seedlings per hill) showed the highest plant height
(94.53 cm) but the highest number of tillers per hill (24.65), number of leaves per hill
(161.70), number of panicles per hill (17.22), number of grains per panicle (105.6), 1000seed
weight
(22.00 g), grain yield (3.92 t/ha), stover yield (5.77 t/ha) and harvest index
(40.37%) was obtained from H
4
(1 seedling per hill). With the interaction effect of
different variety and seedling per hill the highest plant height (99.40 cm) was recorded in
V
3
H
4
1
but the highest number of tillers per hill (25.07), number of leaves per hill (356.60),
number of panicles per hill (19.13), number of grains per panicle (121.70), 1000-seed
weight (24.67 g), grain yield (4.42 t/ha), stover yield (6.02 t/ha) and harvest index
(42.33%) was obtained from V
4
H
1
4
. It may be stated that the best variety was V
(ACI
hybrid-2) and 1 seedling per hill under the present study. The combination of V
(ACI
hybrid-2 with 1 seedling per hill) performed the best in producing higher yield than other
treatments comprised with other variety and number of seedling per hill under the present
study.
3
4
4
H
1
2
4
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, 2010