Abstract:
A pot experiment was conducted in the net house of the Department of Genetics and
Plant Breeding, Sher-e-Bangla Agricultural University, Dhaka- 1207, during the
months of November 2018 to March 2019 observed the Genotypic differences of ten
tomato genotypes under three different drought treatments. Two factorial experiment
including ten tomato genotypes viz. G
iv
1
(local variety), G
2
(BARI Tomato 16), G
(BARI Tomato 3), G
4
(BARI Tomato 15), G
5
(BARI Tomato 2),G
(BARI Tomato
18), G
7
(BARI Tomato 19), G
8
(BARI Tomato 14), G
9
6
(BARI Tomato 11), G
(ROMA VF), and three drought treatments, T
1
(Control), T
(15 days withholding of
water) and T
3
2
(35 days withholding of water) were outlined in completely randomized
design (CRD) with three replications. The results showed that both the tomato
genotypes and drought treatments had significant influence independently and
dependently on agromorphogenic, physiological, antioxidant and nutritional traits of
tomato plant. Almost all traits responded negatively as the drought level increased
except days to first flowering, maturity, proline and brix (%). Regarding yield
performance G
8
showed tolerance at moderate drought stress and G
at severe drought
stress. Regarding antioxidant and nutritional traits, G
5
for brix (%), G
9
,G
10
for Vitamin-C content and G
for lycopene content showed tolerance at moderate
drought stress period and G
10
3
2
, G
3
,G
for prolonged and severe drought stress. These
genotypes could be recommended to the farmers for cultivation in the drought prone
areas of Bangladesh and also could be used in future hybridization or other gene
transfer programmes.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka-1207,
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
GENETICS AND PLANT BREEDING
