Abstract
Background: Cut flowers rely on stored carbohydrate reserves for flower opening and maintenance and the postharvest life of many cut flowers can be extended by adding sucrose to the vase solution. Objective: To study the role of soluble carbohydrates on the longevity and to understand the physiological basis of sucrose on the vase life, we investigated the changes in soluble carbohydrate pools and ethylene production during the postharvest phase of cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟) treated with 8-hydroxyquinoline citrate (HQC) or sucrose plus HQC. Cut rose stems were placed in distilled water, 200 mg L -1 HQC, or 20 g L -1 sucrose plus 200 mg L -1 HQC solutions, and kept at 23 ◦C for evaluation. Results: The vase life of „Audio‟ was 11.3 d whereas that of „Black Magic‟ was 5.7 d in distilled water. HQC and sucrose plus HQC treatments increased „Audio‟ and „Black Magic‟ flower longevity by 2-5 days. „Black Magic‟ flowers produced higher ethylene rate than „Audio‟ flowers during postharvest period and petals abscised at a quicker rate. Treatment with sucrose plus HQC delayed in the utilization of the glucose, fructose and sucrose in petals and stems and delayed ethylene production in both cultivars. Concentrations of soluble carbohydrates in „Audio‟ petals and stems were higher than those in „Black Magic‟ flowers throughout the experimental period. Fructose was the main carbohydrate in petals of both cultivars, followed by glucose and sucrose. Conclusion: these results indicate that carbohydrate supply and ethylene production rate may determine the length of the vase life of these cut rose flowers.
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Claims 10
Claim · model-written summary
Audio flowers lasted 11.3 days in water, compared with 5.7 days for Black Magic.
- Taxon
- Rosa hybrida L.
Rosa hybrid cultivare1 - Material
- „Audio‟e0
- Treatment
- distilled watere0
- Outcome
- vase lifee0
- Value
- 11.3 de0
- Qualifier
- 5.7 de0
- Comparator
- „Black Magic‟e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The vase life of „Audio‟ was 11.3 d whereas that of „Black Magic‟ was 5.7 d in distilled water”
e1“cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟)”
Claim · model-written summary
HQC increased flower longevity by 2–5 days in both cultivars.
- Taxon
- Rosa hybrida L.Rosa hybrid cultivare1
- Treatment
- HQCe0
- Outcome
- flower longevitye0
- Direction
- increasede0
- Value
- 2-5 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HQC and sucrose plus HQC treatments increased „Audio‟ and „Black Magic‟ flower longevity by 2-5 days”
e1“cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟)”
Claim · model-written summary
Sucrose plus HQC increased flower longevity by 2–5 days in both cultivars.
- Taxon
- Rosa hybrida L.Rosa hybrid cultivare1
- Treatment
- sucrose plus HQCe0
- Outcome
- flower longevitye0
- Direction
- increasede0
- Value
- 2-5 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HQC and sucrose plus HQC treatments increased „Audio‟ and „Black Magic‟ flower longevity by 2-5 days”
e1“cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟)”
Claim · model-written summary
Black Magic produced ethylene faster than Audio after harvest.
- Taxon
- Rosa hybrida L.Rosa hybrid cultivare1
- Material
- „Black Magic‟e0
- Outcome
- ethylene ratee0
- Direction
- highere0
- Comparator
- „Audio‟e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“„Black Magic‟ flowers produced higher ethylene rate than „Audio‟ flowers during postharvest period”
e1“cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟)”
Claim · model-written summary
Black Magic petals abscised faster than Audio petals.
- Taxon
- Rosa hybrida L.Rosa hybrid cultivare1
- Material
- „Black Magic‟e0
- Outcome
- petals abscisede0
- Direction
- quickere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“„Black Magic‟ flowers produced higher ethylene rate than „Audio‟ flowers during postharvest period and petals abscised at a quicker rate”
e1“cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟)”
Claim · model-written summary
Sucrose plus HQC delayed use of glucose, fructose and sucrose in petals and stems.
- Taxon
- Rosa hybrida L.Rosa hybrid cultivare1
- Organ / stage
- petals and stemse0
- Treatment
- sucrose plus HQCe0
- Outcome
- utilization of the glucose, fructose and sucrosee0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with sucrose plus HQC delayed in the utilization of the glucose, fructose and sucrose in petals and stems”
e1“cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟)”
Claim · model-written summary
Sucrose plus HQC delayed ethylene production in both cultivars.
- Taxon
- Rosa hybrida L.Rosa hybrid cultivare1
- Treatment
- sucrose plus HQCe0
- Outcome
- ethylene productione0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with sucrose plus HQC delayed in the utilization of the glucose, fructose and sucrose in petals and stems and delayed ethylene production in both cultivars”
e1“cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟)”
Claim · model-written summary
Audio petals and stems had higher soluble carbohydrate concentrations than Black Magic throughout the experiment.
- Taxon
- Rosa hybrida L.Rosa hybrid cultivare1
- Material
- „Audio‟e0
- Organ / stage
- petals and stemse0
- Outcome
- Concentrations of soluble carbohydratese0
- Direction
- highere0
- Comparator
- „Black Magic‟e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentrations of soluble carbohydrates in „Audio‟ petals and stems were higher than those in „Black Magic‟ flowers throughout the experimental period”
e1“cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟)”
Claim · model-written summary
Fructose was the main petal carbohydrate in both cultivars, followed by glucose and sucrose.
- Taxon
- Rosa hybrida L.Rosa hybrid cultivare1
- Organ / stage
- petalse0
- Outcome
- Fructose was the main carbohydratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fructose was the main carbohydrate in petals of both cultivars, followed by glucose and sucrose”
e1“cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟)”
Claim · model-written summary
The authors infer that carbohydrate supply and ethylene production rate may determine vase life.
- Taxon
- Rosa hybrida L.Rosa hybrid cultivare1
- Outcome
- length of the vase lifee0
- Qualifier
- carbohydrate supply and ethylene production ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“carbohydrate supply and ethylene production rate may determine the length of the vase life of these cut rose flowers”
e1“cut roses (Rosa hybrida L. cvs. „Audio‟ and „Black Magic‟)”
The same questions in other papers
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1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
sucrose · physiology: hormones · Rosa hybrid cultivarResults agree
1 paper in the same direction as this paper
- positive
sucrose · pest · Rosa hybrid cultivarResults agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.