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Effect of priming with cathodic water and subsequent storage on invigoration of Pisum sativum, Cucurbita maxima and Lycopersicon esculentum seeds

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A study was conducted to determine the effect of priming and subsequent storage on germination of Pisum sativum (pea), Cucurbita maxima (pumpkin) and Lycopersicon esculentum (tomato) seeds. Freshly sourced seeds were hydrated on paper towels moistened with 2 mM ascorbic acid, a solution containing 1 μM calcium chloride and 1 mM magnesium chloride, cathodic water, or tap water. Pea, pumpkin and tomato seeds were fully hydrated in 24, 28 and 12 hours, respectively. Half of the hydrated seed samples were dried to storage moisture content under ambient conditions (slowly) for seven (pea and pumpkin) or 14 days (tomato). The remaining seeds were desiccated over silica gel in a laminar flow cabinet (rapidly) for 21 hours (pea and pumpkin) or 4.5 hours (tomato). The dried seeds, together with a non-primed control, were stored hermetically at 5°C for four months. Rapid drying reduced germination significantly in pea and pumpkin seeds, while drying rate had no effect on germination in tomato. Priming treatments enhanced seed germination in pea and pumpkin, and vigour in all three species, whether stored or unstored, especially when priming was done with cathodic water.
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Document Type: Research Article

Publication date: July 1, 2016

This article was made available online on July 4, 2016 as a Fast Track article with title: "Effect of priming with cathodic water and subsequent storage on invigoration of <i>Pisum sativum, Cucurbita maxima</i> and <i>Lycopersicon esculentum</i> seeds".

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  • Seed Science and Technology (SST) is one of the leading international journals featuring original papers and review articles on seed quality and physiology as related to seed production, harvest, processing, sampling, storage, distribution and testing. This widely recognised journal is designed to meet the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality.
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