1‐methylcyclopropene extendsCymbidiumorchid vaselife and prevents damaged pollinia from accelerating senescence
作者:
J. A. Heyes,
J. W. Johnston,
期刊:
New Zealand Journal of Crop and Horticultural Science
(Taylor Available online 1998)
卷期:
Volume 26,
issue 4
页码: 319-324
ISSN:0114-0671
年代: 1998
DOI:10.1080/01140671.1998.9514070
出版商: Taylor & Francis Group
关键词: Cymbidium;ethylene;1‐methylcyclopropene;orchid;pollinia;senescence;vaselife
数据来源: Taylor
摘要:
A single postharvest application of 1‐methylcyclopropene (MCP) was effective in prolonging vaselife ofCymbidiumorchids by 6 or 7 days, to c. 19 days. It also prevented repeated applications of ethylene shortening the vaselife ofCymbidiumorchids. The anti‐ethylene effect of one MCP treatment persisted throughout three successive challenges with ethylene at 5‐day intervals. A supra‐optimal concentration of MCP (500 ppb) showed no adverse effects. MCP was also effective in protectingCymbidiumorchids against accelerated senescence caused by damage to the pollinia. Individual flowers with damaged pollinia senesced even more rapidly than ethylene‐treated intact flowers. In the presence of MCP, flowers with damaged pollinia had a vaselife almost equal to that of undamaged flowers. This is a significant finding for the orchid export industry.
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