Hydropriming enhances the germination of aged ultra-dry wheat seeds
Hydropriming is an efficient strategy for reviving aged seeds. In the present study, hydropriming was optimised for vigour enhancement in aged ultra-dry wheat seeds. Wheat seeds (initially dried to 5.0% moisture content) stored at ambient temperature for ten years were humidified over water for seven days, then soaked for 12, 24 and 36 hours in aerated distilled water (seed priming treatment). Primed and unprimed seeds were equilibrated at ambient conditions for 48 hours. Changes in germination traits, activities of anti-oxidative enzymes, hydrogen peroxide (H2O2), malondialdehyde (MDA), α-amylase activity, soluble protein and soluble sugars were determined. Results indicated that hydro priming for 12 hours significantly increased the germination percentage, from 50.7 to 58.6%. The increase in germination was significantly positively correlated with catalase activity (r = 0.969), and significantly negatively correlated with accumulation of H2O2 (r = 1.000).
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Document Type: Research Article
Publication date: April 1, 2020
This article was made available online on February 25, 2020 as a Fast Track article with title: "Hydropriming enhances the germination of aged ultra-dry wheat seeds".
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