Abstract:
A pot experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka
during November, 2019 to February, 2020, to investigate the effect of arsenic stress
tolerance of four mustard varieties. The experiment consisted of two factors, and
followed Randomized complete block design (RCBD) with five replications. Factor
A: Mustard varieties (4) viz; V
1
=BARI Sarisha-11, V
ii
2
=BARI Sarisha-12, V
=BARI
Sarisha-14 and V
=No As (Control), A
4
= BARI Sarisha-15 and Factor B: Different arsenic level (3) viz; A
1
= 50 mg As kg
-1
soil and A
2
= 100 mg As kg
soil. Data on
different parameters were collected for assessing results for this experiment and
showed significant variation in respect of growth, yield and yield contributing
characteristics of mustard due to the effect of different mustard varieties, arsenic level
and their combinations. Among the mustard varieties, BARI Sarisha-11 variety
recorded the maximum number of siliquae plant
-1
(86.35), 1000 seeds weight (3.53
g), seed yield plant
-1
(3.55 g), stover yield plant
-1
(15.13 g) and harvest index (18.98
%). Among the arsenic levels, 0 ppm arsenic treated plants recorded the maximum
number of branches plant
-1
(4.18), number of siliquaee plant
-1
(69.97), number of
seeds siliquaee
-1
(17.37), 1000 seeds weight (3.39 g), seed yield plant
(2.64 g),
stover yield plant
-1
(13.4 g) and harvest index (16.55 %), which were gradually
decreased with the increasing arsenic level. In case of combined effect, cultivation of
BARI Sarisha-11 alone with different arsenic level gave higher seed yield ranges
between (3.82-3.07 g) from 0-100 ppm arsenic level and perform well in case of seed
production comparable to other treatment combination and suitable for cultivation of
mustard in arsenic prone areas comparable to other varieties.
Description:
A Thesis
Submitted to the Department of Agronomy, Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka in partial
fulfillment of the requirement for the degree of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
