Resumo

ROMERO, Gladys; HEREDIA, Angie  e  CHAPARRO-ZAMBRANO, Hans Nicolás. GERMINATIVE POTENTIAL IN QUINOA (Chenopodium quinoa Willd.) SEEDS STORED UNDER COOL CONDITIONS. rev.udcaactual.divulg.cient. [online]. 2018, vol.21, n.2, pp.341-350. ISSN 0123-4226.  https://doi.org/10.31910/rudca.v21.n2.2018.1076.

Quinoa is a crop with high potential due to its nutritional properties, wide adaptation to edaphoclimatic conditions and genetic diversity. This research aimed at evaluating four accessions of quinoa (Chenopodium quinoa) seeds, as well as their viability and germination percentage after cold storage. Storage temperatures and time were 4-20, -80°C and 10 months, with evaluation every two months. Initial seed viability was lower than 71% for all accessions and moisture content 10%. After storage, all accessions showed an increase in germination percentage. The accession with the greatest increase in terms of germination and the lowest moisture level (10,66%) before treatments, was the Nariño cultivar. Quinoa seed showed a secondary dormancy because of adverse storage conditions, this was inferred from the better response in germination after cold storage treatment. On the other hand, quinoa loses its germinative potential in short periods of time when stored under environmental conditions, therefore, regarding its storage, cool conditions and seed moisture content near 10% are recommended.

Palavras-chave : seed storage; viability; temperatura; water content; germination percentage.

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