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post harvest management of cut flower , cut flower ,harvest management of flower
This document discusses post-harvest management of cut flowers. It begins by introducing cut flowers as high-value but highly perishable crops. It then discusses how cut flowers deteriorate after harvesting due to respiration and factors like temperature, food supply, and ethylene accumulation. Proper temperature management and adequate food supply can help minimize deterioration by reducing respiration rate. The document emphasizes that cool chain management is essential to maintain flower quality after harvesting. It lists factors affecting post-harvest life and discusses best harvest times, pre-cooling, pulsing, and floral packaging techniques.
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post harvest management of cut flower , cut flower ,harvest management of flower
- 1. Arvind yadav ID –721, bsc (hons) horticulture . batch - 2017 Banda University of Agriculture Technology Banda.
- 2. Post harvest management ofcut flowers
- 3. INTRODUCTION • Cut flowers –High valued crops – Highly perishable • Quality remain best at harvest
- 4. Cut flowers deteriorateas time passes from harvesting
- 5. How you willminimize the on going deterioration of Cut flower after harvesting How long a Cut flower will sustain life
- 6. It is theRespiration Rate of a flower that determine how long a flower will sustain life. The next big question now is how to reduce respiration rate
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- 8. The higher thetemperature, the higher is the Respiration rate
- 9. To maintain theFLOWER QUALITY after harvesting Cool Chain Management is thus essential
- 10. Cut stem ofFlowers are perishable due to one or more of the following reasons :- • Attacked by bacteria and fungi, • Normal maturation and aging , • Desiccation due to water stress and xylem blockage, • Bruising and crushing, • Fluctuating temperatures during storage and transit, • Accumulation of ethylene, The flowers are thus required to be handled very carefully and treated adequately during Pre harvest as well as Post harvest period to maintain the quality.
- 11. Factors affecting postharvest life of flower Pre-harvest Harvest o Genetic makeup Stage of harvest o Growing conditions Time of harvest • Light method of harvest • Temperature Post-harvest factor • Humidity Light • Water Temperature • Nutrients Humidity • Pest & diseases Ventilation • Toxic gases Packaging
- 12. Post harvest handlingof cut flowers includes both harvest and handling ● Harvest includes the decision of when, how and where to cut and the actual act of cutting the flower. ● Handling is everything else involved in preparing the flowers for market.
- 13. “WHEN” Best time ofday for harvesting flowers The best time is the coolest part of the day and when there is no surface water from dew or rain on the plants. This usually is in the cool of the morning after the dew has dried.
- 14. General rules forwhen to harvest are:- Spike type flowers— Harvest when one-fourth to one-half of the individual florets are open; Daisy type flowers— Harvest when flowers are fully open.
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- 16. Pre-cooling Rapid removal offield heat, immediately after the harvest of flowers. Done by placing in cold storage without packing or in open boxes. Pre-cooling temperature varies from species to species. Example : Gladiolus : 5-7 ˚C Bird of Paradise : 7-8 16˚ C
- 17. Pulsing • The absorptionof chemical solutions containing sugar and germicide through the lower cut bases of flower stem is Known as pulsing. • Sucrose replace the depleted endogenous CHO utilised during the post harvest life of flowers.
- 19. Floral Packaging Boxes :- Sturdychipboard floral boxes protect bouquets. Sleeves: - Polypropylene floral sleeves are ideal for wrapping cut flowers.