Abstract:
This experiment was performed to screen potato varieties against salinity stress. This
study was conducted in the net house of Genetics and Plant Breeding Department at
Sher-e-Bangla Agricultural University from December, 2019 to March, 2020. This
study was done with ten potato varieties where eight varieties were collected from
Tuber Crops Research Centre (TCRC), Agricultural Research Institute (BARI),
Gazipur, Bangladesh and other two varieties were collected from Sylhet which are
used as local variety. The varieties were BARI Alu-29 ( V
1
), Pechar Chokh (V
2
), BARI
Alu-72 (V
3
), Lal Shila (V
4
), BARI Alu-53 (V
5
), BARI Alu-25 (V
6
), BARI Alu-28 (V
7
)
and BARI Alu 36 (V
8
), BARI Alu-7 (V
9
) and BARI Alu-73 (V
10
). Four salinity
treatments including T
1
(control), T
2
(5 dS/m), T
3
(10 dS/m), T
4
(15 dS/m) were
applied to the varieties. In this experiment completely randomized design (CRD) with
three replications were followed. Varieties and salinity treatment influenced singly in
interaction of agromorphogenic and physiological traits of potato. Salinity treatment
affected almost all traits of potato significantly except dry weight of plant and k
uptake. Higher plant height (55.23 cm) was found in V
5
at T
2
treatment. V
7
showed
higher number of leaflets per plant under T
2
and T
3
treatment. V
8
showed higher
chlorophyll content value in T
2
, T
3
and T
4
treatments. V
8
also showed lower Na
uptake and V
3
showed higher K
+
uptake in T
4
salinity treatment. V
3
showed higher
proline content with the increase of salinity treatment. From the research findings, it
was reported that in case of number of tuber per plant and total weight of yield, V
3
performed better under T
2
, T
3
and T
4
salinity treatments and the variety V
9
also given
second highest yield under T
2
treatment. Among all the varieties V
3
performed well
as a salt tolerant variety.
+
+
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
IN
GENETICS AND PLANT BREEDING
SEMESTER: JAN-JUNE, 2021
