Modelling the Postharvest Life of Cut Roses

Reid, Michael S.; Mokhtari, Mimoun; Lieth, J. Heinrich; Doorn, Wouter G. van; Evans, R.Y.

doi:10.17660/actahortic.1996.424.24

Cited by 10 publications

(9 citation statements)

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“…Bent neck has been attributed to the presence of embolisms in the stem that restrict water flow (Burdett, 1970). These embolisms are thought to be mostly bacterial in nature (Burdett, 1970;Reid et al, 1996) because the addition of compounds with bactericidal effects greatly limited the occurrence of bent neck (Ohkawa et al, 1999). However, water flow restriction has also been attributed to blockage caused by particulates such as proteins and gums that clog the xylem (Burdett, 1970; , 1996).…”

Section: Resultsmentioning

confidence: 99%

Refining Postharvest Handling Procedures Increased Cut Rose Vase Life

Moody¹,

Dole²,

Barnes³

2014

hortte

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ADDITIONAL INDEX WORDS. Rosa hybrida, 1-methylcyclopropene, ethylene, silver thiosulfate, senescence SUMMARY. Various postharvest procedures were conducted on several rose (Rosa hybrida) cultivars to determine the effects on vase life, water uptake, change in fresh weight, stage of opening, and vase life termination criteria. Vase life was influenced by cultivar and vase solution. Commercial preservative solutions resulted in a longer vase life, smaller decrease in fresh weight than the controls, and smaller increase in water uptake. Vase life of nine cultivars in distilled water ranged from a low of 7.1 days for Queen 2000 to a high of 15.3 days for Forever Young. Flower termination criteria were also cultivar specific with Black Baccara, Classy, and Charlotte most prone to bent neck and blackening of petal tips. Exogenous ethylene at 0.4 or 4.0 mLÁL L1 did not affect vase life but lowered water uptake. Application of the antiethylene agent silver thiosulfate (STS) at 0.2 mM concentration significantly improved vase life in five out of the nine cultivars (Anna, Charlotte, First Red, Freedom, and Konfetti) tested, but 1-methylcyclopropene (1-MCP) at 740 nLÁL L1 did not improve vase life over the control. Both vase life and water uptake were reduced when more than one stem was placed in a vase; placing 10 stems in a vase shortened vase life by 1.4 days and impeded water uptake by up to 10.6 mL/stem per day. Increasing the amount of time stems remained dry before placing in a vase reduced vase life, but recutting immediately before placing in a vase minimized the decline. Increasing the amount of stem cut off the base up to 10 cm increased vase life.

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Section: Resultsmentioning

confidence: 99%

Refining Postharvest Handling Procedures Increased Cut Rose Vase Life

Moody¹,

Dole²,

Barnes³

2014

hortte

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“…The composition of internal gases is closely related to plastic film type and thickness. By comparison, the O 2 permeability of LDPE film is higher than that of PP and PVC films ( Reid et al., 1996 ; Kader, 2002 ). In comparison with air-stored flowers, those retained in PP-film passive MAP had lower water vapor transmission and longer shelf life ( Singh et al., 2009 ).…”

Section: Resultsmentioning

confidence: 99%

Effects of active and passive modified atmosphere packaging on biochemical properties of cut Dendrobium orchid flowers

Poonsri

2021

Heliyon

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Optimal storage conditions are essential to preserving the quality of postharvest produce and cut flowers during transportation, especially to overseas destinations. As a result, this research investigated the effects of active and passive modified atmosphere packaging (MAP) on the biochemical properties of cut Dendrobium Sonia orchid flowers. In active MAP, the orchid flowers were wrapped in MAP plastic film filled with 5 % carbon dioxide (CO 2 ) and 2 % oxygen (O 2 ). Meanwhile, in passive MAP the flowers were stored inside MAP plastic film without filling with 5 % CO 2 and 2 % O 2 . The experimental MAP plastic films were polyethylene, low density polyethylene, high density polyethylene, polypropylene, and polyvinyl chloride films. The biochemical parameters included storage life, respiration rate, ethylene production, internal O 2 and CO 2 , anthocyanin content, protein degradation, and electrolyte leakage. The results showed that the average storage life of orchid flowers under passive MAP condition was 9–15 days, depending on the plastic film types. The longest storage life of 15.66 days was achieved with polypropylene film. The storage life of orchid flowers in active MAP was 9.33 days on average. Without MAP (control), the storage life was 7 days under normal atmosphere condition (0.03 % CO 2 and 21 % O 2 ). The experiments also demonstrated that MAP efficiently reduced respiration rate, ethylene production, anthocyanin degradation, protein degradation, and electrolyte leakage. Unlike existing research on MAP which focused primarily on extending the shelf life of fresh produce or cut flowers, this study comparatively investigated the biochemical properties of cut orchid flowers stored in MAP environment, in addition to the storage life.

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“…These results are also supported by previous studies. For example, it was reported that when the water potential in cut roses drops to -1 MPa, a rapid reduction in water conductance occured (Reid et al, 1996), and a water potential of -2 MPa resulted in petal abscission (van Doorn and Vojinovic, 1996). In cut 'Cara Mia' roses, a rapid onset of cavitation occurred at a water potential of -1.7 MPa (van Doorn and Suiro, 1996).…”

Section: Water Potential and Cavitationmentioning

confidence: 99%

“…As tension in the stem increases (i.e., becomes more negative) due either to freeze-thaw cycles or water stress, sub-microscopic gas bubbles of air or carbon dioxide come out of solution and fill the xylem (Tyree and Sperry, 1989). Although some air enters the basal xylem vessels of roses after harvesting (Reid et al, 1996), extensive research has shown that the onset of cavitation often occurs during the post-harvest stage (Bleeksma and van Doorn, 2004).…”

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confidence: 99%