PJB-2018-725
EFFECTS OF SALINITY ON WHEAT VARIETIES AS ALLEVIATED BY SEED PRIMING
AttaUllah Khan
Abstract
The experiment entitled: “Effects of salinity on wheat varieties as ameliorated by seed priming†an experiment was conducted in completely randomized design (CRD) having three replications. In this experiment un primed and primed seed (50 mM CaCl2) of wheat varieties (Lalma-13, Shahkar-13, Pirsabak-13, Insaf-15, Barsat-10, AttaHabib-10, Siran-10, Bathoor-08, Pirsabak-08, Seher-06, Pirsabak-05, Saleem-00, Uqab-00, and Inqilab-91) were assigned to four levels of NaCl (0, 45, 90, 135 mM) in sand culture as growing medium. Maximums hoot K+ content (1.35 mg g-1 dry weight), shoot chlorophyll a and b content (1.57 mg g-1 dry weight vs 1.01 mg g-1 dry weight) and shoot dry weight plant-1 (2.08 g) were recorded from wheat variety Pirsabak-05. The shoot Ca++ content (0.78 mg g-1 dry weight) was highest in varietyLalma-13. The Variety (Uqab-00) showed maximum shoot Na+/K+ ratio (1.86) and shoot Na+ content (1.31 mg g-1 dry weight). The Seed priming has significantly influenced all aforementioned parameters, excluding shoot Na+content and shoot Na+/K+ ratio. It is concluded that influence of seed priming in wheat variety Pirsabak-05, Lalma-13 and Insaf-15 was tolerant to salinity compared with Uqab-00 and Seher-06. The deleterious effect of salinity in wheat was relieved to some extent by seed priming.
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