Articles

AN ALTERNATIVE TO EXTENDING POSTHARVEST QUALITY OF DENDROBIUM WATER OUMAE (4N) INFLORESCENCES USING 1-MCP FUMIGATION

Article number
804_41
Pages
297 – 302
Language
English
Abstract
1-Methylcyclopropene (1-MCP) gas has been reported to delay plant senescence.
The effect of 1-MCP on the postharvest quality and display-life of Dendrobium Water Oumae (4N) was investigated.
Sprays of Dendrobium Water Oumae (4N) were harvested with 4-5 open florets.
They were placed in sealed plastic containers and fumigated with 1-MCP at 100, 200 or 400 nL.L-1 at 25°C for 1.5 h compared to unfumigated flower (control). Thereafter, they were transferred and held in a vase solution containing 2% glucose + 150 mg.L-1 8-HQS and treated with 1-MCP at 400 nL.L-1 reduced flower wilting.
All concentrations of 1-MCP (100, 200, 400 nL.L-1) significantly reduced flower abscission.
However, 1-MCP did not affect water uptake of orchid sprays compared to the control.
Sprays treated with 1-MCP had longer display life (30 days compared to 26 days for the control). In conclusion, 1-MCP fumigation may be used as an alternative for extending the postharvest quality of orchid inflorescences before export or transport to customer.

Publication
Authors
K. Obsuwan, A. Uthairatanakij
Keywords
bud opening, displayed-life, flower dropped, 1-MCP, Dendrobium
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