|Flower||%O2||%CO2||Temp. (°C)||Maximum Weeks of Storage|
Optimum Relative Humidity: 90-95% for most flowers.
Benefits of CA: The benefits, of CA have not been well demonstrated for the flowers listed above, but the above recommendations have been published in the scientific literature. CA and handling requirements for these flowers should be tested before being adopted commercially. In some cases, CA may be deleterious to these flowers.
Benefits of Ethylene Removal: Many flowers produce very little ethylene but are sensitive to the effects of ethylene. Ethylene removal in recommended.
Special Treatments Before Shipping: Flowers should be cooled immediately after harvest. Most flowers have high respiration rates and short postharvest lives so good temperature management is essential.
Varietal Differences: There are important differences among flower varieties in their ethylene sensitivity, response to controlled atmospheres and postharvest life. Shipping conditions should be guided by experience with each variety.
Mixed Loads: Do not ship flowers with ethylene producing commodities.
Cautions: Low O2may cause leaf discoloration, petal browning or enhanced decay. High CO2may cause blueing of petals or browning of leaves or stems. Controlled atmospheres may not be suitable for some flowers.
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