Abstract:
A pot experiment was conducted at the net house of Agro-Environmental Chemistry
Laboratory of the Department of Agricultural Chemistry, Sher-e-Bangla Agricultural
University, Dhaka-1207, during the period from November 2017 - August 2018 to
find out the alleviation of adverse effects of salt stress in tomato by foliar application
of salicylic acid. The experiment comprised of two factors: Factor-1. Salinity levels:
0, 3, 6 and 9 dSm
-1
and Factor- 2. Rate of salicylic acid: 0 mM, 0.5 mM, 1 mM and
1.5 mM. BARI tomato -14 was used as the test crop. Data were taken from plant
height, leaves plant
-1
, number of branches plant
-1
, days to 1
st
flowering from
transplanting, number of flower cluster
-1
, number of flower cluster plant
,number of
flower plant
-1
, number of fruit plant
-1
, length of fruit, diameter of fruit, fruit yield
plant
-1
, K, Na, Ca and P content in fruit. When single effect was considered, salinity
adversely affected most of the growth and yield parameters and nutrient content
except Na, but application of salicylic acid elevated all the mentioned parameters.
When combined effect was considered, maximum plant height (70.33 cm), leaves
plant
-1
(53.50) at final harvest, number of branches plant
-1
-1
(6.67), flower plant
(19.18), fruit plant
-1
(11.78) and fruit yield plant
-1
(470.30 g) were found from S
0
treatment. Whereas the minimum plant height (23.00 cm), number of branches plant
1
(2.33), flower plant
-1
(6.10), fruit plant
-1
(4.88) and fruit yield plant
-1
(161.50 g) were
found from S
9
SA
0.0
treatment. In all the salinity levels, it was found that foliar
application of salicylic acid reduce adverse effect of salt stress. Such as at S
9
salinity
level showed minimum fruit yield plant
-1
(161.50 g) was found when no salicylic acid
was applied but maximum fruit yield plant
salicylic acid was applied as foliar S
9
SA
1.5.
-1
(186.70 g) was found when SA
1.5
Similar trend was observed for all the
parameter except K, Ca and Na content.
-1
SA
1.5
Description:
A Thesis
Submitted to the Department of Agricultural Chemistry,
Sher-e-Bangla Agricultural University, Dhaka
In partial fulfillment of the requirements
For the degree of
MASTER OF SCIENCE (MS)
IN
AGRICULTURAL CHEMISTRY
SEMESTER: JANUARY- JUNE, 2018
