Ornamentals Hanoi [Compatibility Mode]

Ornamentals Hanoi [Compatibility Mode] - 10/28/2010...

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10/28/2010 1 Postharvest biology and technology for floricultural crops Postharvest biology and handling laboratory Hanoi, 2010 Factors affecting the life of cut flowers & potted plants Sell better cultivars 20 25 yelowing petal fal 0 5 10 15 R e b c a J u ile io D ia m o n Ire L M H liu s V ic to ria ra N ta j T C S Y lo w d re in P tra h p g days Temperature management Lilies stored 5 days, 2 days in vase life room 37 41 46 32 50 55 60 Water relations • Failure in water relations • Water uptake < transpiration • Xylem occlusion – Emboli – Hard water –Bacter – Physiological plugs
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10/28/2010 2 Air emboli • Recut under water • Acidify the water • Use warm (or cold) water • Pressurize (20 cm H 2 O) • Use a brief detergent dip Bacterial contamination • Use a preservative • Clean white buckets M aintaining water supply Answer this question: Would you drink that water, from that bucket? Ethylene
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10/28/2010 3 STS Preventing ethylene damage Other growth regulators • Gibberellins retard leaf yellowing
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Ornamentals Hanoi [Compatibility Mode] - 10/28/2010...

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