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Revista Ciência Agronômica

versão On-line ISSN 1806-6690

Resumo

LIMA, Denise de Castro; DUTRA, Alek Sandro  e  CAMILO, Juliana de Mesquita. Physiological quality of sesame seeds during storage. Rev. Ciênc. Agron. [online]. 2014, vol.45, n.1, pp.138-145. ISSN 1806-6690.  http://dx.doi.org/10.1590/S1806-66902014000100017.

Sesame (Sesamum indicum L.) is one of the oldest oilseed plants used by man, and has great economic potential due to the possibilities for its exploitation in both the domestic and international markets. The objective of this work was to monitor the viability of sesame seeds stored in different environments and packaging, with a view to their conservation. The seeds were packed into paper bags, multiwall paper, black polyethylene and PETE bottles, and stored for a period of 12 months in different environments: dry cold room (10 °C and 55% RH), natural environment (30-32 °C and 75% RH), refrigerator (4 °C and 38-43% RH) and freezer (-20 °C). Every three months the water content of the seeds was determined and germination, accelerated ageing, speed of emergence index, and seedling dry weight were evaluated. The experimental design employed was completely randomised, in a scheme of split-lots, with four replications. The results showed that sesame seeds remain viable for up to twelve months when stored in a dry cold room or refrigerator, regardless of the type of packaging used. In a natural environment, the seeds remain viable for up to six months in storage. Paper packaging is the most suitable for sesame seeds stored in a freezer for up to twelve months.

Palavras-chave : Storage; Germination; Conservation.

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