EFFECT OF TRANSPLANTING DEPTHS ON TILLERING AND YIELD OF HYBRID AND INBRED RICE
Date
2018-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY, SHER-E-BANGLA AGRICULTURAL UNIVERSITY
Abstract
A field experiment was conducted in medium fertile soil at Sher-e-Bangla
Agricultural University (90º37´ E longitude and 23º77´ N latitude), Dhaka,
Bangladesh during November 2017 to April 2018 in Boro season with a view to
evaluating the performance of rice varieties under different transplanting depths. The
experiment was carried out with three varieties i.e. BRRI hybrid dhan3, BRRI dhan45
and BRRI dhan63 in the main plot and four levels of transplanting depth viz. (2, 4, 6
and 8 cm) in the sub-plots. The experiment was laid out in a split-plot design with
three replications. The combination of variety and transplanting depth had significant
effects on most of the growth and yield contributing parameters. At 30, 50, 80 DAT
and at harvest, the longest plant (18.20 cm, 25.72 cm, 79.86 cm, and 102.9 cm) was
found from the treatment combination of V
1
D
(BRRI hybrid dhan3 × transplanting at
2 cm depth), whereas the shortest (22.86 cm, 29.14 cm, 77.64 cm, and 87.55 cm) was
observed from the treatment combination of V
1
3
D
(BRRI dhan63 × transplanting at 2
cm depth). At 30, 50, 80 DAT and at harvest, the maximum number of tillers hill
1
(1.73, 9.80, 17.29, and 13.22) was recorded from the treatment combination of V
(BRRI hybrid dhan3 × transplanting at 4 cm depth), again the minimum number
(1.20, 9.80, 14.53 and 11.00) was obtained from the treatment combination of V
(BRRI dhan45 × transplanting at 4 cm depth) at 30, 50, 80 DAT and at harvest. The
longest panicle (24.49 cm) was found from the treatment combination of V
, while
the shortest panicle length (21.48 cm) was observed from V
3
D
. The highest weight of
1000 grains (30.02 g) was recorded from the treatment combination of V
3
and the
lowest weight (23.54 g) from V
3
D
1
. The highest grain yield (8.55 t ha
) was recorded
from the treatment combination of V
1
D
2
and the combination of V
1
-1
D
also produced
statistically similar yield (8.09 t ha
-1
) whereas the lowest (5.75 t ha
-1
. It
may be concluded that growth, yield and yield contributing characters of Boro rice
were greatly influenced by varieties and transplanting depth. Variety V
(BRRI hybrid
dhan3) at transplanting depth 4 cm produced longest panicle, maximum number of
filled grains panicle
-1
and highest 1000 grains weight and ultimately provided
maximum yields of BRRI hybrid dhan3.
4
1
1
D
D
4
) from V
1
4
2
D
1
2
1
-1
D
D
2
2
Description
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE
IN
AGRONOMY
SEMESTER: JANUARY-JUNE, 2018
Keywords
TILLERING, HYBRID AND INBRED RICE