Revista Brasileira de Engenharia Agrícola e Ambiental
versão impressa ISSN 1415-4366
COSTA, Andreza S. et al. Storage of cut Heliconia bihai (L.) cv. Lobster Claw flowers at low temperatures. Rev. bras. eng. agríc. ambient. [online]. 2011, vol.15, n.9, pp.966-972. ISSN 1415-4366. http://dx.doi.org/10.1590/S1415-43662011000900013.
The postharvest conservation of cut Heliconia flowers is an important factor to the success of commercialization, especially with regard to exportation. In the present study, the maximal storage time of cut inflorescences of Heliconia bihai cv. Lobster Claw at two different temperatures (12 and 19 °C) was evaluated and compared to laboratory conditions (25 °C, control treatment). Changes in visual quality, fresh weight and bract color (L*, a* and b*) were determined. The visual quality of the inflorescences and fresh weight decreased with time in all treatments. Symptoms of chilling injury were observed on the inflorescences stored at 12 °C for six and eight days. Bract color was not affected by temperature, storage time or the senescence process. The results indicate that a temperature of 12 °C is not recommended for a storage time longer than four days, whereas 19 °C can be used for a storage time of up to eight days for cut inflorescences of H. bihai cv. Lobster Claw.
Palavras-chave : chilling injury; colorimetry; senescence; tropical flower; vase life.