Data/hora: 09/06/2024 03:56:56

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 30/06/2015
Data da última atualização: | 17/10/2018
Autoria: | SOUZA, S. O. de; SOUSA, S. C. C. de; LIMA, M. A. C. de; OLIVEIRA, A. H.; BARBOSA, J. G.; FINGER, F. L.
Afiliação: | SANDRA OLIVEIRA DE SOUZA, UFV; SIMONE CÁSSIA CORRÊA DE SOUSA, UFV; MARIA AUXILIADORA COELHO DE LIMA, CPATSA; AGNELLI HOLANDA OLIVEIRA, CTAA; JOSÉ GERALDO BARBOSA, UFV; FERNANDO LUIZ FINGER, UFV.
Título: | Longevity and quality of Heliconia psittacorum x H. spathocircinata 'Golden Torch' treated with 8-hydroxyquinoline citrate.
Ano de publicação: | 2015
Fonte/Imprenta: | Acta Horticulturae, Leuven, n. 1060, p. 187-192, jan. 2015.
Idioma: | Inglês
Notas: | Edição do Proceedings of the X International Symposium on Postharvest Quality of Ornamental Plants, Porto de Galinhas, PE, 2012.
Conteúdo: | This study aimed to evaluate the effect of 8-hydroxyquinoline citrate (8-HQC) on the quality and longevity of heliconia ?Golden Torch? inflorescences stored at 23.9±1.8°C and 51±9% RH. The treatments consisted of 0, 100, 200 and 300 mg L-1 8-HQC, evaluated at 0, 2, 4, 6 and 8 days after harvest. The inflorescences were pulsed with 8-HQC for 18 h and subsequently transferred to flasks with distilled water. At every two days, floral appearance, fresh mass, flower opening, chroma and lightness were determined. The floral appearance was influenced by storage time and by the treatment with 8-HQC. However, the values of fresh weight, the flower opening, lightness and chroma were affected only by the number of days in storage. The fresh weight decreased by 1.6% from the first to eighth day after harvest. At the end of the storage time, the inflorescences exhibited two open flowers at the start of expansion. The lightness value increased by 3.4%, while the chroma decreased by almost 4.9% in bracts during storage, indicating the passage of dark orange color to light orange. The 8-HQC did not increase the vase life of inflorescences compared to control. Based on the scale of appearance, the inflorescences treated with 300 mg L-1 of 8-HQC had superior vase life compared with the other treatments, within eight days of evaluation.
Palavras-Chave: | Citrato de 8-hidroxiquinolina.
Thesagro: | Conservação; Floricultura; Helicônia; Planta ornamental.
Thesaurus Nal: | Flowers; Ornamental plants.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (54751-1) - UPC - AP - DD -  -  -  - DIS