Abstract
Ethephon (2-chloroethylphosphonic acid) was applied to single cluster greenhouse tomato crops (1000 ppm) at the green mature stage of fruit development or when 35% of the plants had fruits at the breaker stage. Fruits were harvested at the pink stage. Untreated fruit were harvested from 95 to 116 days after sowing whereas fruit from the green mature ethephon treatment were harvested from 92 to 102 days, three days earlier and with a reduction in the harvest window from 22 to 11 days. Fruit treated with ethephon at 35% breaker were harvested at the same time as untreated fruit, but harvest was completed after only 12 days. Fruit yield from the green mature ethephon treatment was reduced by about 30%, but there was no significant difference in fruit yield as a result of ethephon treatment at 35% breaker. Fruit color, firmness and soluble solids were evaluated one and six days after harvest. Fruit firmness and soluble solids were unaffected by treatment; however, fruit from the ethephon treatments were significantly redder in color. In a second experiment, ethephon was applied at 500 or 1000 ppm when 100% of the plants had fruit at the breaker stage. Fruit were harvested over a 7-day time interval compared to untreated fruit that were harvested over 14 days, and there was a small but significant increase in fruit yield for the 1000 ppm treatment. Both ethephon treatments also increased fruit soluble solids. For limited cluster tomato production systems, ethephon is effective in reducing the harvest window without loss in postharvest fruit quality.
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Claims 12
Claim · model-written summary
Green mature ethephon advanced harvest by three days.
- Treatment
- green mature ethephon treatmente0
- Outcome
- harvestede0
- Direction
- earliere0
- Value
- three dayse0
- Comparator
- Untreated fruite0
Not reportedTaxon
Verbatim
e0“Untreated fruit were harvested from 95 to 116 days after sowing whereas fruit from the green mature ethephon treatment were harvested from 92 to 102 days, three days earlier and with a reduction in the harvest window from 22 to 11 days.”
t0“Tomato”
Claim · model-written summary
Green mature ethephon reduced the harvest window from 22 to 11 days.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- green mature ethephon treatmente0
- Outcome
- harvest windowe0
- Direction
- reductione0
- Value
- 22 to 11 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit from the green mature ethephon treatment were harvested from 92 to 102 days, three days earlier and with a reduction in the harvest window from 22 to 11 days”
t0“Tomato”
Claim · model-written summary
Ethephon at 35% breaker did not change harvest timing.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- ethephon at 35% breakere0
- Outcome
- harvestede0
- Direction
- same timee0
- Comparator
- untreated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit treated with ethephon at 35% breaker were harvested at the same time as untreated fruit, but harvest was completed after only 12 days.”
t0“Tomato”
Claim · model-written summary
Ethephon at 35% breaker completed harvest in 12 days.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- ethephon at 35% breakere0
- Outcome
- harvest was completede0
- Direction
- onlye0
- Value
- 12 dayse0
- Comparator
- untreated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit treated with ethephon at 35% breaker were harvested at the same time as untreated fruit, but harvest was completed after only 12 days.”
t0“Tomato”
Claim · model-written summary
Green mature ethephon reduced fruit yield by about 30%.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- green mature ethephon treatmente0
- Outcome
- Fruit yielde0
- Direction
- reducede0
- Value
- about 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit yield from the green mature ethephon treatment was reduced by about 30%”
t0“Tomato”
Claim · model-written summary
Ethephon at 35% breaker did not significantly alter fruit yield.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- ethephon treatment at 35% breakere0
- Outcome
- fruit yielde0
- Direction
- no significant differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no significant difference in fruit yield as a result of ethephon treatment at 35% breaker”
t0“Tomato”
Claim · model-written summary
Ethephon did not affect fruit firmness or soluble solids in the first experiment.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- treatmente0
- Outcome
- Fruit firmness and soluble solidse0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit firmness and soluble solids were unaffected by treatment”
t0“Tomato”
Claim · model-written summary
Ethephon made fruit significantly redder.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- ethephon treatmentse0
- Outcome
- colore0
- Direction
- reddere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit from the ethephon treatments were significantly redder in color”
t0“Tomato”
Claim · model-written summary
Breaker-stage ethephon shortened harvest from 14 to 7 days.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- time intervale0
- Value
- 7-daye0
- Qualifier
- 14 dayse0
- Comparator
- untreated fruite0
Not reportedTreatmentDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit were harvested over a 7-day time interval compared to untreated fruit that were harvested over 14 days”
t0“Tomato”
Claim · model-written summary
The 1000 ppm treatment slightly increased fruit yield.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 1000 ppm treatmente0
- Outcome
- fruit yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a small but significant increase in fruit yield for the 1000 ppm treatment”
t0“Tomato”
Claim · model-written summary
Both breaker-stage ethephon treatments increased fruit soluble solids.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- ethephon treatmentse0
- Outcome
- fruit soluble solidse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both ethephon treatments also increased fruit soluble solids”
t0“Tomato”
Claim · model-written summary
The authors conclude ethephon reduces the harvest window without postharvest quality loss.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- ethephone0
- Outcome
- reducing the harvest window without loss in postharvest fruit qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For limited cluster tomato production systems, ethephon is effective in reducing the harvest window without loss in postharvest fruit quality.”
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See all 24 papers →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.