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Accelerated ageing test for the evaluation of quinoa seed vigour

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Maintenance of seed quality in quinoa has been a major setback for its cropping in tropical environments. Quinoa seeds, achenes sensu stricto, are rather small, suggesting germination and vigour evaluations should be similar to other small seeded species. This work aimed to develop an accelerated ageing test for the evaluation of quinoa seed vigour, using seeds from five diff erent lots. Three solutions were used: distilled water, 100% relative humidity (RH), saturated NaCl with 94% RH and super-saturated NaCl with 76% RH. Seeds were placed over the solutions at 41 and 45°C for 12, 24 and 48 hours. Seed water content was determined before and after ageing. Contrary to most small seeded species, the 100% RH ageing test showed more consistent results, in comparison with the solutions containing NaCl, to evaluate quinoa seed vigour. Therefore, of all the treatments, a traditional accelerated ageing test at 41°C for 48 hours was found to be eff ective, with high and positive correlation (r = 0.93, P < 0.05) with field seedling emergence.
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Document Type: Research Article

Publication date: April 1, 2017

This article was made available online on February 7, 2017 as a Fast Track article with title: "Accelerated ageing test for the evaluation of quinoa seed vigour".

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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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