Abstract:
An experiment was conducted at the field of Sher-e-Bangla Agricultural
University farm. Dhaka in Itabi season during November 2006 to March 2007 to
evaluate the growth and yield of two rapeseed varieties as affected by population
density. The treatment of the experiment consisted of two varieties viz. BAR!
sarisha-13 and SAU sarisha-1 and six population density viz. 30. 40 50 60 70
and 80 plants m 2
. Die experiment was laid out in a randomized complete block
design (thetorial) with three replications. The higher seed yield was obtained from
SAU sarisha-1 (1799.77 kg ha-') which was 8.17% higher than BARI sarisha-13.
The higher seed yield of SAU sarisha-1 this was mainly attributed to number of
branches plant -! and number of siliquae plant* Among the population densities.
the lowest population density of 30 plants ui
2
had maximum number of branches
plant
number of siliquac plant
length of siliqua. number of seeds per siliqua.
1000-seeds weight and seed yield plant
except plant height. The seed yield
hectare' was the highest with population density of' 60 plants
111 2
which was
28.07%. 19.97%. 17.74%. 10.25% and 6.47% higher than 30. 40, 50. 70 and 80
plants rn'2
respectively. The interaction effect of variety and population density
was also significant showing the highest seed yield plant
from the combined
efket of SALJ sarisha-1 and population density of 30 plants ni
2
This was achieved
due to maximum number of branches plant and number of' siliquac plant
'.The
maximum
seed yield per hectare was obtained by using SALJ sarisha-1 and 60
plants
m'
2.This
was
due to the Ilict that 60 plants rn'7
was the optimum plant
population n12
which assested in obtaining higher yield than other plant densities.
All of the yield attributes were highly significant. The relationship between the
yields attributes and yield was highly significant.
