Abstract:
An experiment was conducted at the farm of Sher-e-Bangla Agricultural University,
Dhaka, during the period from October 2018 to February 2019, to find out the
morphological and yield characters of different tomato (Lycopersicon esculentum L.)
genotypes as influenced by drought stress. Three varieties viz. V
(BARI tomato-2),
V
2
(BARI tomto-5) and V
3
(BARI tomato-7) and four drought stress viz. T
1
(control;
no stress), T
1
(Drought stress at early fruiting stage), T
(Drought stress at mid fruiting
stage) and T
3
2
(Drought stress at late fruiting stage) were considered for two factors
experiment under the present study. Results showed that the variety, V
(BARI
tomato-7) gave the best result regarding yield (60.96 t ha
-1
0
3
) under no stress (T
)
condition compared to V
1
(BARI tomato-2) and V
(BARI tomto-5) even under
drought stress regarding T
1
2
(Drought stress at early fruiting stage), T
(Drought stress
at mid fruiting stage) and T
3
2
(Drought stress at late fruiting stage) the highest yield
was obtained from V
3
(BARI tomato-7) (43.72, 56.87 and 68.08 t ha
, respectively)
compared to performance of other varieties under drought stress. Considering relative
performance on total dry weight plant
-1
(shoot + root), V
1
T
3
, V
2
T
3
-1
and V
showed
better performance. So, it can be decided that the variety V
1
3
T
3
(BARI tomato-2), V
(BARI tomto-5) and V
(BARI tomato-7) can be considered as more tolerant against
drought stress but V
3
3
(BARI tomato-7) showed best performance in terms of best
morpho-physiological parameters and yield. Treatment T
(Drought stress at late
fruiting stage) showed better result on growth and yield performance whereas drought
stress at early fruiting stage to till harvest (T
1
3
) was the most affected fruiting stage
considering. Regarding combined effect of variety and drought stress, V
(drought
stress at late fruiting stage with variety BARI tomato-7) gave best performance
regarding morpho-physiological and yield performance excluding control.
3
T
3
0
2
Description:
A Thesis
Submitted to the Faculty of Agriculture, Dept. of Agricultural Botany,
Sher-e-Bangla Agricultural University, Dhaka,
In partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE
IN
AGRICULTURAL BOTANY
SEMESTER: JUNE, 2020
