TY - JOUR
T1 - 1-MCP pretreatment prevents bud and flower abscission in Dendrobium orchids
AU - Uthaichay, N.
AU - Ketsa, S.
AU - van Doorn, W.G.
N1 - 000245287300012
PY - 2007
Y1 - 2007
N2 - Dendrobium orchid inflorescences were treated for 4 h at 25 °C with or without 100¿500 nl/l 1-MCP and were then placed in water at 25 °C to follow abscission. In controls, depending on the experiment, 20¿80% of the floral buds and 0¿20% of the open flowers abscised within 1 week. The 1-MCP pretreatment largely prevented this abscission. If flowers were exposed to 1.0 ¿l/l ethylene for 3 days, all floral buds and all open flowers abscised within the 3 days of treatment. 1-MCP treatment just prior to ethylene treatment largely prevented the ethylene effect. Treatment with STS was as effective as treatment with 1-MCP. Dendrobium inflorescences are usually shipped by air in cardboard boxes lined with plastic film. The stem ends are placed in plastic tubes filled with water. After shipment and placement in water, a considerable percentage of the buds, and some flowers, abscise. This is probably due to elevated ethylene concentrations inside the boxes. Treatment of the inflorescences with 100¿500 nl/l 1-MCP prior to simulated air transport largely prevented abscission during vase life. 1-MCP treatment inhibited ethylene production of the inflorescences by lowering both ACC synthase in open flowers and ACC oxidase activity in floral buds.
AB - Dendrobium orchid inflorescences were treated for 4 h at 25 °C with or without 100¿500 nl/l 1-MCP and were then placed in water at 25 °C to follow abscission. In controls, depending on the experiment, 20¿80% of the floral buds and 0¿20% of the open flowers abscised within 1 week. The 1-MCP pretreatment largely prevented this abscission. If flowers were exposed to 1.0 ¿l/l ethylene for 3 days, all floral buds and all open flowers abscised within the 3 days of treatment. 1-MCP treatment just prior to ethylene treatment largely prevented the ethylene effect. Treatment with STS was as effective as treatment with 1-MCP. Dendrobium inflorescences are usually shipped by air in cardboard boxes lined with plastic film. The stem ends are placed in plastic tubes filled with water. After shipment and placement in water, a considerable percentage of the buds, and some flowers, abscise. This is probably due to elevated ethylene concentrations inside the boxes. Treatment of the inflorescences with 100¿500 nl/l 1-MCP prior to simulated air transport largely prevented abscission during vase life. 1-MCP treatment inhibited ethylene production of the inflorescences by lowering both ACC synthase in open flowers and ACC oxidase activity in floral buds.
KW - ethylene
U2 - 10.1016/j.postharvbio.2006.09.015
DO - 10.1016/j.postharvbio.2006.09.015
M3 - Article
SN - 0925-5214
VL - 43
SP - 374
EP - 380
JO - Postharvest Biology and Technology
JF - Postharvest Biology and Technology
IS - 3
ER -