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Response of barley
genotypes to salinity stress as alleviated by seed
priming
SHAZMA ANWAR1,
MOHAMMAD SHAFI1*, JEHAN BAKHT2, MUHAMMAD TARIQ JAN1
AND YOUSAF HAYAT3
Abstract:
The present study
entitled “Response of barley genotypes to salinity stresses as
alleviated by seed priming was conducted at the Greenhouses of the
Institute of Biotechnology and Genetic Engineering, Khyber Pakhtunkhwa
Agricultural University Peshawar, Pakistan. The experiment was conducted
in completely randomized design (CRD) with three replications. The
response of twelve barely genotypes (Haider-93, Soorab-96, Arabic
Asward, NRB-37, Frontier-87, Jau-83, Balochistan-Local, NRB-31,
KPK-Local, Sanober-96, Awarn-2002 and AZ-2006) at two seed conditions
(seed priming with 30 mM NaCl and no seed priming) under four salinity
levels (0 mM, 50 mM, 100 mM and 150 mM) was studied. The results
revealed that seed priming and salinity had significantly (P≤0.05)
affected all parameters under study. However, the effect of seed priming
was non significant on shoot length (cm) and root length (cm). Maximum
shoot length (40.79 cm), shoot fresh weight plant-1 (10.15 g)
and shoot dry weight plant-1 (1.81 g), was recorded in
Balochistan-Local. Haider-93 produced highest root length (20.31 cm).
Frontier-87 exhibited maximum shoot Na+/K+ ratio
(1.49) and maximum shoot proline content of 144.31 µg g-1
fresh weight was recorded from KPK-Local. Seed priming had distinctly
enhanced all the above mentioned parameters except shoot Na+/K+
ratio. It is concluded that salinity stresses had affected all
parameters under study however; seed priming with NaCl had alleviated
the adverse effects of salinity in barely genotypes.
1Agronomy Department, 2Institute of Biotechnology and Genetic
Engineering,
3Department of Statistics KPK Agricultural University Peshawar, Pakistan
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