Abstract:
A field experiment was carried out at Agronomy Field Laboratory, Sher-e-Bangla
Agricultural University, Dhaka during the period from December 2005 to May 2006
to study the influence of different cultivation methods on hybrid and inbred rice in
horo season. The experiment consisted of two level of treatments viz, variety and
cultivation method. The experiment was laid out in spi it-plot design with four
replications. Experimental results showed that variety had significant effect on all the
agronomic parameters except panicle length. total grains panicle", straw yield and
biological yield. The highest grain yield (8.26 t ha") with lowest straw y
ield (7.25 I
ha")was obtained from Sonarhangla-1 and BRRI dha.n 29 gave the lowest grain yield
(7.53 t ha") with highest straw yield (9.58 t ha"). Cultivation method also
significantly influenced all the growth and yield attributes except unfilled grains
paniele". 1000-grains weight and straw yield. The results revealed that nursery
seedlings showed the best performance compared to other cultivation method. The
highest grain yield (8.73 t ha") and straw yield (9.21
I
ha") was obtained from the
nursery seedlings and the lowest grain yield (7.23
1
ha") and straw yield (7.19 t ha'1 )
was obtained from the SRI. Maximum harvest index
52.47
was calculated in the SRI
and minimum harvest index 46.22 was thund in the sprouted seeds broadcast. 'Fillers
hill" of SRI was the highest among the treatments, however, it failed to perform well
in terms of effective tillers rn'2
. though sprouted seeds sown in line and broadcast
showed opposite trends. The plants from sprouted seeds and SRI matured early
compared to the nursery seedlings and clonal tillers. Sprouted seeds of the hybrid
variety sown in line required 113 days, which is 33 days less than the required time
for the traditional method of the inbred rice variety.
