Influence of storage temperature on Epidendrum ibaguense flowers - doi: 10.4025/actasciagron.v33i1.6365

• Autor(a) principal: Mapeli, Ana Maria
• Data de Publicação: 2011
• Outros Autores: Finger, Fernando Luiz, Barbosa, José Geraldo, Barros, Raimundo Santos, Oliveira, Lucilene Silva, Segatto, Fernanda Bastos
• Tipo de documento: Artigo
• Idioma: eng; por
• Título da fonte: Acta Scientiarum. Agronomy (Online)
• Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6365
• topic: Storage; Q10 factor; chilling symptoms; Storage; Q10 factor; chilling symptoms; Agronomia; Floricultura; Fisiologia Pós-colheita

The present work was carried out to evaluate the influence of temperature and wet-versus-dry storage on longevity, respiration and ethylene production during storage of E. ibaguense flowers. The inflorescences were harvested and stored at 5, 10, 15, 20, 25, 30, 35, and 40°C, in water or dry, until complete senescence. Respiration increased when inflorescences were treated with wet or dry storage. The Q10 factor for this flower, at temperatures ranging from 5 to 40°C, was similar to most fresh horticultural products, varying between 1.2 and 3.31 depending on storage temperature. Production of ethylene by the inflorescence was maximal at 20°C for flowers maintained in water, and at 35°C for those flowers kept dry, followed by a sharp drop in both treatments. A maximal shelf life for cut flowers was obtained when the inflorescences were stored wet at 10°C. Symptoms of chilling were observed in flowers stored in water after six to seven days at 5°C, showing petal wilting and necrosis of the labellum. At 40°C, flowers stored dry showed severe petal wilting and darkening of bud petals less than one day after harvest.