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Revista mexicana de ciencias agrícolas
versión impresa ISSN 2007-0934
Resumen
GARCIA DEAN, Julio César et al. Extraction methods in Golden type papaya seed and relationship with longevity. Rev. Mex. Cienc. Agríc [online]. 2011, vol.2, n.2, pp.281-288. ISSN 2007-0934.
It is very scarce available information related to post-harvest handling of papaya seed (Carica papaya L.) and their influence in seed physiologic quality, mainly in germination and vigor. The investigation work was carried out in seeds production laboratory of Center of Training and Development of Seeds Technology, in greenhouse number one of Universidad Autónoma Agraria "Antonio Narro" (UAAAN) during 2008. Aim of work was to evaluate six treatments of seed extraction: hydrochloric acid was used (HCl) at 0.3 and 0.5% during one hour of rest, sulfuric acid (H2SO4) at 0.3% with 1.5 h of rest, sodium hypochlorite (NaClO) at 5% with 30 minutes of rest and fermentation at 48 and 72 h. Extracted seed was stored during 90, 180 and 240 days at 4 °C. It was evaluated seed germination and vigor. A totally random design was used with factorial arrangement. Results indicated that seed physiologic quality was affected by deterioration effects caused by storage and by methods of seed extraction; however, seed conserves its physiologic quality up to 240 days of storage, in treatments with help of HCl at 0.3% and fermentation for 24 h with 93.3 and 91.2 % germination after 240 days of storage.
Palabras llave : Carica papaya L.; germination; post-harvest; storage.