Influence of storage temperature on Epidendrum ibaguense flowers

dc.contributor.authorMapeli, Ana Maria
dc.contributor.authorFinger, Fernando Luiz
dc.contributor.authorBarbosa, José Geraldo
dc.contributor.authorBarros, Raimundo Santos
dc.contributor.authorOliveira, Lucilene Silva
dc.contributor.authorSegatto, Fernanda Bastos
dc.date.accessioned2019-05-15T11:07:09Z
dc.date.available2019-05-15T11:07:09Z
dc.date.issued2011-01
dc.description.abstractThe 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 40ºC, 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 40ºC, 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 20ºC for flowers maintained in water, and at 35ºC 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 10ºC. Symptoms of chilling were observed in flowers stored in water after six to seven days at 5ºC, showing petal wilting and necrosis of the labellum. At 40ºC, flowers stored dry showed severe petal wilting and darkening of bud petals less than one day after harvest.en
dc.description.abstractO presente trabalho avaliou a influência da temperatura e armazenamento úmido e seco sobre a longevidade, respiração e produção de etileno de flores de Epidendrum ibaguense. As hastes foram colhidas, colocadas em vaso e armazenadas em temperatura de 5, 10, 15, 20, 25, 30, 35 e 40ºC, em água ou a seco, até completa senescência das flores. A respiração aumentou quando as inflorescências foram tratadas com armazenamento úmido ou seco. O fator Q10 para estas flores, na faixa de temperatura de 5 a 40ºC, foi similar a da maioria dos produtos hortícolas, variando de 1,2 a 3,3, dependendo da temperatura de armazenamento. A produção de etileno foi máxima a 20ºC, para as flores mantidas em água, e a 35ºC para aquelas mantidas a seco, e a partir destas temperaturas houve redução em ambos os tratamentos. A longevidade foi máxima quando mantidas em água a 10ºC. Sintomas de injúria por frio foram observados em flores armazenadas em água após seis-sete dias a 5ºC, indicando murchamento das pétalas e necrose do labelo. A 40ºC, as flores armazenadas a seco apresentaram severo murchamento das pétalas e escurecimento dos botões florais, em menos de um dia de colhidas.pt-BR
dc.formatpdfpt-BR
dc.identifier.issn1807-8621
dc.identifier.urihttp://dx.doi.org/10.4025/actasciagron.v33i1.6365
dc.identifier.urihttp://www.locus.ufv.br/handle/123456789/25181
dc.language.isoengpt-BR
dc.publisherActa Scientiarum. Agronomypt-BR
dc.relation.ispartofseriesv. 33, n. 1, p. 111-115, jan./ mar. 2011pt-BR
dc.rightsOpen Accesspt-BR
dc.subjectStoragept-BR
dc.subjectQ10 factorpt-BR
dc.subjectChilling symptomspt-BR
dc.subjectArmazenamentopt-BR
dc.subjectFator Q10pt-BR
dc.subjectSintomas de injúria por friopt-BR
dc.titleInfluence of storage temperature on Epidendrum ibaguense flowersen
dc.typeArtigopt-BR

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