Abstract:
A field experiment was conducted to evaluate the effect of detopping on the growth and
yield of sesame varieties at the research farm of Sher-e-Bangla Agricultural University,
Dhaka-1207 during late summer to early monsoon (April-July) of 2014. The experiment
comprised of morphological modification of sesame plant through detopping at four
different stages i.e. detopping at 25 DAS (D
DAS (D
3
) and without detopping (D
0
1
), detopping at 35 DAS (D
2
), detopping at 45
) of some sesame varieties i.e. BARI Til 3, BARI Til
4 and a local variety named Atshira. The experiment was laid out in a Randomized
Complete Block Design (RCBD) with three replications. Results revealed that effects of
detopping on varieties were significant for growth and yield parameters (except 1000-
seed weight). Maximum plant height (103.15 cm) was found from Atshira (Local)
without detopping the plants, BARI Til 3 produced maximum number of branches plant
(24) when detopped at 45 DAS, the highest Leaf Area Index (LAI) was recorded in
Atshira (Local)detopped at 35 DAS. Although maximum number of seed capsule
found from Atshira (Local) with no detopping, maximum number of capsule plant
resulting highest seed yield (1168.3 kg ha
detopped at 35 DAS.
-1
) were recorded from BARI Til 3 when
-1
-1
was
-1
Description:
A Thesis
Submitted to the Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka
in partial fulfillment of the requirements
for the degree
of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
SEMESTER: JANUARY - JUNE, 2015
