PJB-2009-241
IMPROVING YIELD PERFORMANCE OF LANDRACE WHEAT UNDER SALINITY STRESS USING ON-FARM SEED PRIMING
SAEED AKHTER ABRO1*, ABDUL RAZAK MAHAR2 AND AMEER AHMED MIRBAHAR3
Abstract
The low wheat yield in salt-affected soils is often attributed to low seed germination, emergence and poor seedling establishment. Seed priming technology has been found valuable but is not extensively used in salt affected areas. The priming experiment was conducted in farmer’s field having two salinity levels (ECe 8.01 dSm-1 pH 8.10 and ECe 11.90 dSm-1 pH 8.01 respectively) with five landrace genotypes i.e. SALU1a, SALU1b, SALU2, SALU3, SALU4 and a local commercial variety TJ-83. The priming treatments resulted significant increased germination percentage as well as induced earliness of germination, emergence, heading and maturity of all the genotypes at both salinity levels. The genotype SALU4 was observed having the highest germination percentage under priming while SALU2 was the lowest. Similarly, the number of days to emergence, heading and maturity decreased significantly in primed seeds at both salinity levels while genotype SALU4 was found earliest emerging, heading and maturing. The priming increased 1000-grain weight (g) significantly and genotype SALU1b was observed with highest 1000-grain yield.
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