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Seed dormancy mechanism as a factor influencing seed physiological quality in alfalfa (Medicago sativa) cv. Baralfa 85

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In germination assays, alfalfa seeds have shown different imbibition times and levels of imbibition; depending on the sample type, different proportions of seeds exhibit physical dormancy and do not germinate under favourable laboratory conditions. The aim of the present work was to determine the level of dormancy in alfalfa seeds in terms of imbibition speed, moisture content, weight and germination. Seeds with physical dormancy had lower moisture content, lower weight and greater viability than non-dormant seeds. Water permeability varied among seeds, reflecting different levels of physical dormancy, which in turn influenced seed physiological quality.
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Document Type: Research Article

Publication date: April 1, 2013

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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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