Abstract:
A field experiment was conducted at the Agronomy field of Sher-e-Bangla
Agricultural University (SAU), Dhaka during the
,lma,; season in July to
November 2005, with a view to study the perlbrmance of newly developed
Suvash promising lines under different transplanting date along with one
modern variety. The experiment consist two levels of treatments viz. A: Four
transplanting date: 15 July. 1 August. 15 August and 1 September. 13: Four
promising lines/ variety: Subashi, Suhash2. Subash5. and inbred variety BRRI
dhan38. The experiment was laid out in split plot design with three replications.
Experimental result showed that transplanting dates and variety individually
had significant elket on the agronornic parameters like plant height. paniele
length, total tiller in
non-effective tillers nf
2
. effective tillers n12
. total
spikelet panicle
1
. filled grains panicl&'. spikalet sterility
(%). grain yield
(1
ha).
straw yield (t ha1
) and biological yield (t ha'). The result revealed that I
August transplanting gave the highest grain yield
(4.03 t ha1
) which was at per
with 15 July transplanting (3.88 t haj. Among the varieties Subashl gave the
highest yield (3.95 t ha
d
) but that was at per with those of Suvash2 (3.81 t had)
and inbreed variety I3RRI dhan38 (3.72 t ha').The combined effect of date of
transplanting and variety had also significant effect on yield and yield
characters. Subash I and }3RRI dhan38 planted on 1 August showed highest
yield attaining good yield contributing characters.
