Pak. J. Bot., 38(3): 613-622, 2006. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
EFFECT OF SEED PRIMING ON GROWTH OF BARLEY (HORDEUM VULGARE) BY USING BRACKISH WATER IN SALT AFFECTED SOILS M.A. NAEEM AND S. MUHAMMAD
Abstract:
Impact of different pre-sowing seed treatments on growth of barley by
using brackish water for irrigation in different combinations of CaSO4
(10 mM), CaSO4 (30 mM), Gibberellic Acid (20 ppm), Gibberellic Acid
(60 ppm) and hydro priming for 12 h were investigated in pot experiment.
Artificially prepared brackish water was used for irrigation throughout
the crop growth period. Maximum seed germination was observed in treatment
with GA3 (20 ppm followed by CaSO4 (10 mM) while the minimum in farmer
practice treatment (control). Similar trend was found in the straw yield.
Highest Na+ concentration was observed in leaves of plants in pre-sowing
seed treatment with GA3 (20 ppm) with a median content of 50.25 ppm
while minimum in hydro priming for 12 h. Similar trend was found in
the K+, Ca2+ and Mg2+ analyzed at the booting stage. Highest Cl- concentration
was observed in plant with median content of 150.03 ppm, while minimum
in CaSO4 (10 mM) in the leaf of barley at booting stage with a median
content of 125.03 ppm respectively. The maximum Na+: K+ ratio in the
plant leaf was observed in control (farmer practice) with a median content
of 0.280 and lowest in CaSO4 (10 mM) with a median content of 0.226.
The Ca2+: Mg2+ ratios were observed maximum almost in all the primed
treatments than farmer practice (control). Department of Soil Science & SWC, University of Arid Agriculture, Rawalpindi, Pakistan. |
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