Abstract:
An experiment was conducted to assess the influence of four nitrogen levels and plant
population on the growth and yield attributes of sesame at the agronomy research
field of Sher-e-Bangla Agricultural University, Dhaka during the period from March
to July. 2009. The experiment was conducted in randomized complete block design
comprising three replications. The treatments included four levels of nitrogen viz.0,
30, 45 and 60 kg ha' and four levels plant population density viz.166666, 222222,
333333
and 666666 plants hi'. Results indicated that (different levels of N fertilizer
and plant population had significant effects on yield and yield attributes of sesame.
lThe addition of N levels resulted in the increasing of yield and yield attributes of
sesame and the highest plant height (115.50 cm), branches plant' (4.57), capsules
branches-' (17.36), total capsules
planit
(80.32),
number of effective capsules plant'
(76.47), capsule length (2.38
cm), seeds capsule1 (70.13), filled seeds capsuled
(68.31). 1000 seeds weight
(3.46
g). seed yield (1.50 t hi') and harvest index
(24.45%) were obtained from 60 kg N ha On the other hand, increasing of plant
population resulted increases in yield and yield attributes of sesame like plant height,
unfilled seeds capsule1, seed yield, stover yield and harvest index. The highest seed
yield of sesame plant (1.50 t hi1 ), stover yield (4.64 t hi') and harvest index
(24.45%)
were found from 666666 plants hi' plant population. The combined effect
of nitrogen levels and plant population had a significant effect on the plant parameters
of sesame. The highest branches plant'
(5.12). capsules branch1 (19.07), total
capsules plant' (97.55),
number of effective capsules plant' (93.75), capsule length
(2.79 cm), seeds capsule1 (84.63), filled seeds
capsul&t
(82.88), 1000 seeds weight
(3.65
g) were recorded from 166666 plants hi' in combination with 60 kg N hi'
applied but highest plant height (120.00 cm), seed yield (1.76 t hi'). stover yield
(5.07 t hi') and harvest index
(25.73%) were obtained from the 666666 plants hi' in
combination with 60 kg N hi' applied.
