Abstract
Natural variation in the postharvest quality and longevity of ornamental plants can often be related to differences in their response to ethylene. In the present study, we determined the postharvest performance and ethylene sensitivity of cut flowers from 38 cultivated Hybrid Tea rose genotypes. The vase life of the cultivars varied considerably from 4.5 to 18.8 days at 21 °C. There was also substantial variation in the degree of flower opening among genotypes. Exposure to 1 μL·L −1 ethylene for 24 h at 21 °C reduced the longevity of 27 cultivars by 0.8 to 8.4 days (18% to 47%) by accelerating petal wilting and abscission. Ethylene treatment also significantly reduced rates of flower opening in 17 sensitive cultivars and in six cultivars that showed no ethylene-related reduction in vase life. Five cultivars showed no reduction in vase life or flower opening in response to ethylene exposure. Pre-treating stems with 0.2 m m silver thiosulfate liquid or 0.9 μL·L −1 1-methylcyclopropene (1-MCP) gas for 16 h at 2 °C reduced the deleterious effects of ethylene. The release of 1-MCP from two sachets containing EthylBloc™ into individual shipping boxes also protected flowers against ethylene applied immediately after a 6-d commercial shipment. The duration of protection afforded by the 1-MCP sachet treatment was greatest when flowers were maintained at low temperature.
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Claims 12
Claim · model-written summary
Rose cultivars varied in vase life from 4.5 to 18.8 days at 21 °C.
Verbatim
e0“The vase life of the cultivars varied considerably from 4.5 to 18.8 days at 21 °C”
t0“Rose”
Claim · model-written summary
Rose genotypes varied substantially in flower opening.
Verbatim
e0“substantial variation in the degree of flower opening among genotypes”
t0“Rose”
Claim · model-written summary
Ethylene exposure shortened vase life in 27 rose cultivars by 0.8 to 8.4 days.
- Taxon
- Roset0
- Treatment
- 1 μL·L −1 ethylene for 24 h at 21 °Ce0
- Outcome
- longevitye0
- Direction
- reducede0
- Value
- 0.8 to 8.4 dayse0
- Qualifier
- 27 cultivarse0
Not reportedComparator
Verbatim
e0“Exposure to 1 μL·L −1 ethylene for 24 h at 21 °C reduced the longevity of 27 cultivars by 0.8 to 8.4 days (18% to 47%)”
t0“Rose”
Claim · model-written summary
Ethylene accelerated petal wilting and abscission.
Not reportedComparator
Verbatim
e0“by accelerating petal wilting and abscission”
t0“Rose”
e1“Exposure to 1 μL·L −1 ethylene”
Claim · model-written summary
Ethylene significantly reduced flower opening rates in 17 sensitive cultivars.
- Taxon
- Roset0
- Treatment
- Ethylene treatmente0
- Outcome
- rates of flower openinge0
- Direction
- reducede0
- Qualifier
- 17 sensitive cultivarse0
Not reportedComparator
Verbatim
e0“Ethylene treatment also significantly reduced rates of flower opening in 17 sensitive cultivars”
t0“Rose”
Claim · model-written summary
Ethylene reduced flower opening in six cultivars without a vase-life reduction.
- Taxon
- Roset0
- Treatment
- Ethylene treatmente1
- Outcome
- rates of flower openinge1
- Direction
- reducede1
- Qualifier
- six cultivars that showed no ethylene-related reduction in vase lifee0
Not reportedComparator
Verbatim
e0“in six cultivars that showed no ethylene-related reduction in vase life”
e1“Ethylene treatment also significantly reduced rates of flower opening”
t0“Rose”
Claim · model-written summary
Five cultivars had no vase-life reduction after ethylene exposure.
- Taxon
- Roset0
- Treatment
- ethylene exposuree0
- Outcome
- vase lifee0
- Direction
- no reductione0
- Qualifier
- Five cultivarse0
Not reportedComparator
Verbatim
e0“Five cultivars showed no reduction in vase life or flower opening in response to ethylene exposure”
t0“Rose”
Claim · model-written summary
Five cultivars had no reduction in flower opening after ethylene exposure.
- Taxon
- Roset0
- Treatment
- ethylene exposuree0
- Outcome
- flower openinge0
- Direction
- no reductione0
- Qualifier
- Five cultivarse0
Not reportedComparator
Verbatim
e0“Five cultivars showed no reduction in vase life or flower opening in response to ethylene exposure”
t0“Rose”
Claim · model-written summary
Silver thiosulfate pretreatment reduced ethylene damage to cut roses.
- Taxon
- Roset0
- Treatment
- 0.2 m m silver thiosulfate liquide0
- Outcome
- deleterious effects of ethylenee0
- Direction
- reducede0
- Qualifier
- for 16 h at 2 °Ce0
Not reportedComparator
Verbatim
e0“Pre-treating stems with 0.2 m m silver thiosulfate liquid or 0.9 μL·L −1 1-methylcyclopropene (1-MCP) gas for 16 h at 2 °C reduced the deleterious effects of ethylene”
t0“Rose”
Claim · model-written summary
1-MCP gas pretreatment reduced ethylene damage to cut roses.
- Taxon
- Roset0
- Treatment
- 0.9 μL·L −1 1-methylcyclopropene (1-MCP) gase0
- Outcome
- deleterious effects of ethylenee0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Pre-treating stems with 0.2 m m silver thiosulfate liquid or 0.9 μL·L −1 1-methylcyclopropene (1-MCP) gas for 16 h at 2 °C reduced the deleterious effects of ethylene”
t0“Rose”
Claim · model-written summary
1-MCP sachets protected shipped roses against ethylene immediately after six days of shipment.
- Taxon
- Roset0
- Treatment
- two sachets containing EthylBloc™e0
- Outcome
- protected flowers against ethylenee0
- Qualifier
- immediately after a 6-d commercial shipmente0
Not reportedComparatorDirection
Verbatim
e0“The release of 1-MCP from two sachets containing EthylBloc™ into individual shipping boxes also protected flowers against ethylene applied immediately after a 6-d commercial shipment”
t0“Rose”
Claim · model-written summary
Low temperature extended the duration of protection from 1-MCP sachets.
Verbatim
e0“The duration of protection afforded by the 1-MCP sachet treatment was greatest when flowers were maintained at low temperature”
t0“Rose”
The same questions in other papers
ethene · quality: postharvest · RosaResults differ
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- positive
- negative
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- no effect
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See all 5 papers →ethene · pest · RosaResults agree
2 papers in the same direction as this paper
- negative
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silver atom · physiology: hormones · RosaResults agree
2 papers in the same direction as this paper
- positive
- positive
thiosulfate · physiology: hormones · RosaResults agree
2 papers in the same direction as this paper
- positive
- positive
ethene · disease · RosaResults agree
2 papers in the same direction as this paper
- no effect
- negative
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.