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Postharvest responses of cut Dendrobium orchids to exogenous ethylene


Citation

Almasi, Parviz and Tengku Muda Mohamed, Mahmud and Ahmad, Siti Hajar and Kadir, Jugah and Mirshekari, Amin (2012) Postharvest responses of cut Dendrobium orchids to exogenous ethylene. African Journal of Biotechnology, 11 (16). art. no. 19CF52037846. pp. 3895-3902. ISSN 1684-5315

Abstract

The time to senescence of flowers in Dendrobium hybrids is different and one of the major reasons for this variation in vase life can be related to differences in the level of ethylene sensitivity. This study was conducted to determine the sensitivity of six cutDendrobium hybrids to exogenous ethylene. The cut orchid inflorescences were treated with or without 10 µL/L ethylene gas for 24 h, and then placed in bottles containing a standard vase solution. Water loss, vase life, anthocyanin contents and ethylene production were determined after the treatments. The results indicated that different hybrids showed distinct variances in ethylene sensitivities and degrees of deterioration. Dendrobium ‘Darren Glory’ and D. ‘Jaquelyne Concert’ × D. ‘Rinappa’ exhibited the utmost hyponasty, weight loss and degradation of anthocyanin content in sepals and petals. Thus, these two hybrids were categorized as the very sensitive group. On the other hand, D. ‘Sonia Red’, D. ‘Shavin White’, D. ‘Sonia White’ and D.‘Sonia Bom’ showed lower sensitivity and hence were categorized in the less sensitive group. The results of this experiment and similar experiments to determine the resistant and susceptible cultivars to ethylene injury can be helpful in improving the postharvest life of cut orchid flowers.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Institute of Tropical Agriculture
DOI Number: https://doi.org/10.5897/AJB11.3221
Publisher: Academic Journals
Keywords: Ethylene sensitivity; Vase life; Anthocyanin content; ACC synthase; ACC oxidase
Depositing User: Nur Farahin Ramli
Date Deposited: 05 Sep 2013 00:38
Last Modified: 09 Oct 2019 07:58
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.5897/AJB11.3221
URI: http://psasir.upm.edu.my/id/eprint/24639
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