Abstract
Experiments were conducted to compare the effects of different preharvest and postharvest 1-methylcyclopropene (1-MCP) treatment combinations on ‘Law Rome’ and ‘Golden Delicious’ apple fruit. Preharvest 1-MCP sprays had minimal effects on maturity as determined by flesh firmness, starch index, internal ethylene concentration, and soluble solids concentration. Fruit internal ethylene concentration and firmness loss after 30- to 40-days storage at 0 °C plus 7 days at 20 °C were reduced by preharvest and postharvest 1-MCP treatments. The positive effects of preharvest 1-MCP on postharvest quality of ‘Law Rome’ declined in fruit that were harvested 3 days or more after spraying, whereas preharvest 1-MCP continued to have a positive effect on postharvest fruit quality of ‘Golden Delicious’ that were harvested up to 9 days after spraying. The loss in postharvest effects of preharvest 1-MCP treatment on ‘Law Rome’ at delayed harvests was reinstated by exposing fruit to gaseous 1-MCP on the day of harvest. These findings suggest that attached apple fruit of some cultivars may be capable of rapidly generating new ethylene receptors.
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Claims 6
Claim · model-written summary
Preharvest 1-MCP had minimal effects on apple maturity indicators.
- Taxon
- apple
Malus domesticat0 - Treatment
- Preharvest 1-MCP sprayse0
- Outcome
- maturitye0
- Direction
- minimal effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Preharvest 1-MCP sprays had minimal effects on maturity as determined by flesh firmness, starch index, internal ethylene concentration, and soluble solids concentration.”
t0“Apples”
Claim · model-written summary
Preharvest and postharvest 1-MCP reduced stored fruit ethylene concentration and firmness loss.
- Taxon
- apple
Malus domesticat0 - Treatment
- preharvest and postharvest 1-MCP treatmentse0
- Outcome
- Fruit internal ethylene concentration and firmness losse0
- Direction
- reducede0
- Qualifier
- 30- to 40-days storage at 0 °C plus 7 days at 20 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fruit internal ethylene concentration and firmness loss after 30- to 40-days storage at 0 °C plus 7 days at 20 °C were reduced by preharvest and postharvest 1-MCP treatments.”
t0“Apples”
Claim · model-written summary
Preharvest 1-MCP quality benefit declined for Law Rome fruit harvested at least 3 days after spray.
- Taxon
- apple
Malus domesticat0 - Material
- ‘Law Rome’e0
- Outcome
- postharvest qualitye0
- Direction
- declinede0
- Qualifier
- 3 days or more after sprayinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The positive effects of preharvest 1-MCP on postharvest quality of ‘Law Rome’ declined in fruit that were harvested 3 days or more after spraying”
t0“Apples”
Claim · model-written summary
Preharvest 1-MCP quality benefit continued for Golden Delicious harvested up to 9 days later.
- Taxon
- apple
Malus domesticat0 - Material
- ‘Golden Delicious’e0
- Outcome
- postharvest fruit qualitye0
- Direction
- positive effecte0
- Qualifier
- up to 9 days after sprayinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“preharvest 1-MCP continued to have a positive effect on postharvest fruit quality of ‘Golden Delicious’ that were harvested up to 9 days after spraying”
t0“Apples”
Claim · model-written summary
Harvest-day gaseous 1-MCP restored delayed harvest effects in Law Rome.
- Taxon
- apple
Malus domesticat0 - Material
- ‘Law Rome’e0
- Treatment
- gaseous 1-MCP on the day of harveste0
- Outcome
- postharvest effectse0
- Direction
- reinstatede0
- Comparator
- delayed harvestse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The loss in postharvest effects of preharvest 1-MCP treatment on ‘Law Rome’ at delayed harvests was reinstated by exposing fruit to gaseous 1-MCP on the day of harvest.”
t0“Apples”
Claim · model-written summary
The authors suggest attached fruit of some apple cultivars may rapidly generate new ethylene receptors.
- Taxon
- apple
Malus domesticae0 - Outcome
- rapidly generating new ethylene receptorse0
- Qualifier
- may be capablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“attached apple fruit of some cultivars may be capable of rapidly generating new ethylene receptors”
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