Abstract:
The experiment was conducted at the research field of Sher-e-Bangla Agricultural University, Dhaka,
during the dry season (November, 2012 to June, 2013) to evaluate leaf area development, dry matter
accumulation pattern and yield of some popular hybrid rice varieties. The experiment comprised of three
hybrid varieties (Hira 2, Aloron and Tia) and an inbred variety BRRI dhan 29 with four dates of
transplanting (01 January, 16 January, 31 January and 15 February). The experiment was laid out in
randomized complete block design with three replications. Leaf area development, total dry matter
production, absolute growth rate, yield and yield contributing characters were significantly influenced by
the date of transplanting. Leaf area, total dry matter, absolute growth rate were found higher in early
transplanted plots. The highest grain yield (6.07 t ha') was recorded from plots transplanted on 16 January
due to increased panicles hi\l"' and grains paniclel.Hira 2 exhibited best result on leaf area (LA), absolute
growth rate and total dry matter (TDM) production compared to all other studied varieties and thus
recorded with highest grain yield (6.40 t ha"). No difference on grain yield was achieved from Hira2 at
oI to 16 January transplanting
