Abstract:
The study was curled out at the Slier-c- Bangla Agricultural University farm, Dhaka
during ?'ovember 2006 to
March
2007 to evaluate the effect of irrigation and variety
on growth. yield attributes and yield of rapesced. The treatment comprised of three
levels of irrigation viz, no irrigation, one irrigation at 20 DAS, one irrigation at 35
DAS, two
irrigations at 20 and 35 DAS, and three irrigations at 20, 35 50 DAS, and
three varieties viz. SAU Sarisha- I, Kalyania and Improved Tori-7. The experiment
was laid out in
it split plot design with three replications. Three irrigations (at 20, 35
and 50 DAS) increased economic yield with higher values of harvest index as the
yield attributes like branches plant", siliqua plani', seeds siliqua" and 1000 seed
weigh were higher The seed yield with three irrigations were 11I.93% and 10.73%
higher than no irrigation and two irrigations, respectively.'The variety SAU Sarisha- 1
showed its superiority by producing 1.4 % and 45.94 % higher yield than Kalyania
and Improved Tori-7, respectively. This variety (SAU Sarisha-L) also showed higher
branches plant", seeds siliqua", 1000 seed weight, biological yield and harvest index.
most of the eases interaction of three irrigations with SAU Sarisha- I performed
best in respect of grain yield as well as other studied parameters. The highest seed
yield (1827.0 kg ha") was found in the interaction of three irrigation with SAU
Sarisha- I. This was achieved due to the maximum number of branches plant', seeds
siliquae" and 1000 seed weight in this interaction. The yield attributes was also
supported with appreciable production of dry matter.
