Abstract:
A field experiment was concluded at the Agronomy held of Sher-e-Bangla
Agricultural University, Sher-e-l3angla Nagar. Dhaka during the period from
January to June 2015 to find out the performance of sonic hybrid rice lines
comparing with 2 itibreds and 2 hybrids as check varieties in born season.
The experiment comprised of 23 varieties
viz.
(i) 13RRI dhan28. (ii) BRItI
dhan29. (iii) AD- I. (iv) Sampad, (v) hybrid line-I, (vi) Hybrid line-2, (vii)
Hybrid linc-3. (viii) Hybrid line-4, (ix) Hybrid Line-S. (x) Hybrid line-6. (xi)
Hybrid Iine-7. (xii) Hybrid hne-8, (xiii) hybrid line-9. (xiv) Hybrid line-il,
(xv)Hybrid line-12, (xvi)Ilybrid line- 13. (xvii) hybrid line-14, (xviii) Hybrid
line-I 5. (xix) hybrid line-16. (xx) Hybrid line-I 7. (xxi) Hybrid line-IS,
(xxii) Hybrid line-19 and (xxiii) 1
111
lybrid
line-20. The experiment was laid out
in Randomized Complete Block Design (RCI3D) with three replications. At
the time of harvest. the longest plant (106.25 cm) and the highest number of
untitled grains panicle' (54.80) were found in Sampad: highest number of
total tillers hill
1
(17.78) and effective tillers hilF' (16.93) were achieved by
Hybrid line-5: highest dry mater weight hill' (84.77 g), highest number of
total grains panicte (214.00) and tilted grains panicl& (184.67) were found
in BRRI dhan29; longest panicle (27.85 cm) and highest weight of 1000-
grains (30.64 g) were recorded in Hybrid line-I 1 and Act-i. respectively.
t h5, straw yield (12.42 t ha
1
) and
biological yield (23.05 t ha') were found in Hybrid line-I 7. In the ease ol
However, the highest grain yield (10.63
z(
days to maturity, the hybrid lines took 142 days (Hybrid line-). 9 and 16) to
160 days (hybrid line-4, 5. 6, 7. 8. 13
7
14 and 20). Contrarily to that. the
check varieties took 160 days (BRRI dhan28. ACI- I and Sampad) to 165
days (BRRI dhan29) to get niau.tred. The hybrids matured 5 to 23 days earlier
than the check varieties. In addition. hybrid line-17 showed 36.79%,
22.40%, 22.91% and 30.65% yield advantages over BRRI dhan28, BRRI
dhan29. ACI-1 and Sanipad, respectively. As such, the Hybrid line-17 could
safely he recommended for further trials at multi-locations in boro season of
Bangladesh.
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 (MS)
IN
AGRONOMY
