Data/hora: 03/06/2024 02:44:35

Provedor de dados: | 53
País: | Brazil
Título: | Responses of Dendrobium 'darrenn glory' and Mokara 'calypso jumbo' orchids to 1-methylcyclopropene and aqueous ozone postharvest treatments
Autores: | Almasi,Parviz; Mohamed,Mahmud Tengku Muda; Anwar,Parvez; Ahmad,Siti Hajar; Kadir,Jugah.
Data: | 2015-12-01
Ano: | 2015
Palavras-chave: | Ethylene sensitivity; Vase life; 1-methylcyclopropene; Aqueous ozone; Orchid quality.
Resumo: | AbstractOrchids possess a very special place amongst ornamental plants. But high ethylene sensitivity and early flower senescence of orchid result in a short vase life and rapid quality deterioration which is of great concern for the growers, traders and consumers. An attempt was made to study the influence of 1-methylcyclopropene (1-MCP) (0 and 300 nL L–1) and аquеous ozone (0 and 5.2 nL L–1) in prolonging vase life and maintaining quality of two cut orchid hybrids Dendrobium 'Darren Glory' (DDG) and Mokara “Calypso Jumbo” (MCJ). Results showed that orchid hybrids exhibited differences in their ethylene sensitivity, vase life, 1-aminocyclopropane-1-carboxylic acid (ACC) content and ACC oxidase activities. Pre-treatment with 1-MCP resulted in reduced ethylene production, vase life, ACC content and ACC oxidase activities, but increased bud opening %. Pre-treatment with аquеous ozone failed to influence all those parameters except bud opening %. Interaction effects of hybrid and 1-MCP were significant for ethylene production, hybrid and ozone for vas life, 1-MCP and ozone for bud opening %, and hybrid, 1-MCP and ozone for ethylene production and vase life. Aqueous ozone markedly contributed to the inhibition of microbial growth in vase solution. Pre-treatment of the cut orchid flowers with 300 nL L–11-MCP, followed by using 5.2 mg L–1 aqueous ozone as the vase solution could be recommended to maintain quality and extend vase life of both the DDG and MCJ orchid hybrids.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000400457
Editor: | Instituto Agronômico de Campinas
Relação: | 10.1590/1678-4499.12414
Formato: | text/html
Fonte: | Bragantia  v.74 n.4 2015
Fonte: | info:eu-repo/semantics/openAccess