Abstract
The effects of AVG, an inhibitor of ethylene synthesis, in combination with MCP or heat treatment (HT) on quality traits of several apple cultivars after harvest (AH) or cold storage (ACS), and the involvement of ethylene in the regulation of SDH activity during the last weeks of fruit development were studied. AVG was applied to Royal Gala, Lodi, Senshu, Redchief Delicious and Red Fuji trees 4 weeks before normal harvest (H1). Control and AVG-treated (AVG) fruit were harvested at H1 and treated with MCP or air-heated. Fruit were ripened at room temperature (RT) AH or ACS. Some AVG fruit were harvested at H1 and 1 to 2 weeks after H1 (H2), or at H2 only. Ethylene production (EP), respiration rate (RR), firmness, starch index (SI), titratable acidity (TA), volatile production (VP) and AAT activity, among others, were measured AH and ACS. Peel and cortex of Gala were alcohol-fed and ester production quantified. EP and SDH presence and activity were measured at various harvest dates on control and AVG Lodi, Red Delicious and Fuji apples. AVG plus MCP was more effective in reducing HEP, RR, firmness and TA loss than either treatment alone; it did not provide further control on SI and did not repress Gala red skin color development more than AVG alone, though it consistently repressed VP. AVG plus HT was generally more effective than single treatments in reducing HEP, RR and firmness loss during storage. It was not different than the single treatments on TA, SI, and VP. The effect of AVG plus HT on fruit quality ACS was cultivar-dependent. AVG plus HT was not enough to maintain the quality of the earlyharvest cultivars, and it did not improve fruit quality of late-harvest cultivars. The effects of AVG plus MCP but not of AVG plus HT were evident at H2. Precursor availability was the major factor limiting VP, suggested by the low VP when RR was low, the increase in ester production in alcohol-fed samples, and the lack of correlation between AAT and ester production. SDH activity or expression was not affected by a reduction in ethylene production.
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Claims 20
Claim · model-written summary
AVG plus MCP reduced HEP more effectively than either alone.
- Taxon
- APPLE
Malus domesticat0 - Treatment
- AVG plus MCPe0
- Outcome
- HEPe0
- Direction
- reducinge0
- Comparator
- either treatment alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus MCP was more effective in reducing HEP, RR, firmness and TA loss than either treatment alone; it did not provide further control on SI and did not repress Gala red skin color development more than AVG alone, though it consistently repressed VP.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus MCP reduced RR more effectively than either alone.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus MCPe0
- Outcome
- RRe0
- Direction
- reducinge0
- Comparator
- either treatment alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus MCP was more effective in reducing HEP, RR, firmness and TA loss than either treatment alone; it did not provide further control on SI and did not repress Gala red skin color development more than AVG alone, though it consistently repressed VP.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus MCP reduced firmness more effectively than either alone.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus MCPe0
- Outcome
- firmnesse0
- Direction
- reducinge0
- Comparator
- either treatment alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus MCP was more effective in reducing HEP, RR, firmness and TA loss than either treatment alone; it did not provide further control on SI and did not repress Gala red skin color development more than AVG alone, though it consistently repressed VP.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus MCP reduced TA loss more effectively than either alone.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus MCPe0
- Outcome
- TA losse0
- Direction
- reducinge0
- Comparator
- either treatment alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus MCP was more effective in reducing HEP, RR, firmness and TA loss than either treatment alone; it did not provide further control on SI and did not repress Gala red skin color development more than AVG alone, though it consistently repressed VP.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus MCP did not improve control of SI.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus MCPe0
- Outcome
- SIe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus MCP was more effective in reducing HEP, RR, firmness and TA loss than either treatment alone; it did not provide further control on SI and did not repress Gala red skin color development more than AVG alone, though it consistently repressed VP.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus MCP did not improve control of Gala red skin color development.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus MCPe0
- Outcome
- Gala red skin color developmente0
- Comparator
- AVG alonee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus MCP was more effective in reducing HEP, RR, firmness and TA loss than either treatment alone; it did not provide further control on SI and did not repress Gala red skin color development more than AVG alone, though it consistently repressed VP.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus MCP repressed VP.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus MCPe0
- Outcome
- VPe0
- Direction
- repressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus MCP was more effective in reducing HEP, RR, firmness and TA loss than either treatment alone; it did not provide further control on SI and did not repress Gala red skin color development more than AVG alone, though it consistently repressed VP.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus heat treatment reduced HEP during storage more effectively than single treatments.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus HTe0
- Outcome
- HEPe0
- Direction
- reducinge0
- Comparator
- single treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus HT was generally more effective than single treatments in reducing HEP, RR and firmness loss during storage.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus heat treatment reduced RR during storage more effectively than single treatments.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus HTe0
- Outcome
- RRe0
- Direction
- reducinge0
- Comparator
- single treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus HT was generally more effective than single treatments in reducing HEP, RR and firmness loss during storage.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus heat treatment reduced firmness loss during storage more effectively than single treatments.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus HTe0
- Outcome
- firmness losse0
- Direction
- reducinge0
- Comparator
- single treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus HT was generally more effective than single treatments in reducing HEP, RR and firmness loss during storage.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus heat treatment did not differ from single treatments for TA.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus HTe1
- Outcome
- TAe0
- Direction
- not differente0
- Comparator
- single treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was not different than the single treatments on TA, SI, and VP.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
e1“AVG plus HT was generally more effective than single treatments in reducing HEP, RR and firmness loss during storage.”
Claim · model-written summary
AVG plus heat treatment did not differ from single treatments for SI.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus HTe1
- Outcome
- SIe0
- Direction
- not differente0
- Comparator
- single treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was not different than the single treatments on TA, SI, and VP.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
e1“AVG plus HT was generally more effective than single treatments in reducing HEP, RR and firmness loss during storage.”
Claim · model-written summary
AVG plus heat treatment did not differ from single treatments for VP.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus HTe1
- Outcome
- VPe0
- Direction
- not differente0
- Comparator
- single treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was not different than the single treatments on TA, SI, and VP.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
e1“AVG plus HT was generally more effective than single treatments in reducing HEP, RR and firmness loss during storage.”
Claim · model-written summary
The effect of AVG plus heat treatment on fruit quality after cold storage depended on cultivar.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus HTe0
- Outcome
- fruit qualitye0
- Qualifier
- cultivar-dependente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of AVG plus HT on fruit quality ACS was cultivar-dependent.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus heat treatment did not improve quality of the earlyharvest cultivars.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus HTe0
- Outcome
- quality of the earlyharvest cultivarse0
- Direction
- not enough to maintaine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus HT was not enough to maintain the quality of the earlyharvest cultivars, and it did not improve fruit quality of late-harvest cultivars.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
AVG plus heat treatment did not improve fruit quality of late-harvest cultivars.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus HTe0
- Outcome
- fruit quality of late-harvest cultivarse0
- Direction
- did not improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AVG plus HT was not enough to maintain the quality of the earlyharvest cultivars, and it did not improve fruit quality of late-harvest cultivars.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
Effects of AVG plus MCP were evident at H2.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus MCPe0
- Outcome
- effects of AVG plus MCPe0
- Qualifier
- H2e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of AVG plus MCP but not of AVG plus HT were evident at H2.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
Effects of AVG plus heat treatment were not evident at H2.
- Taxon
- APPLEMalus domesticat0
- Treatment
- AVG plus HTe0
- Outcome
- effectse0
- Qualifier
- H2e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of AVG plus MCP but not of AVG plus HT were evident at H2.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
Precursor availability was inferred to be the main limit on volatile production.
- Taxon
- APPLEMalus domesticat0
- Outcome
- VPe0
- Qualifier
- Precursor availabilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Precursor availability was the major factor limiting VP, suggested by the low VP when RR was low, the increase in ester production in alcohol-fed samples, and the lack of correlation between AAT and ester production.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
Claim · model-written summary
SDH activity and expression were unaffected by reduced ethylene production.
- Taxon
- APPLEMalus domesticat0
- Compound
- ethylenee0
- Outcome
- SDH activity or expressione0
- Direction
- not affectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SDH activity or expression was not affected by a reduction in ethylene production.”
t0“INTERACTIONS OF AVG, MCP AND HEAT TREATMENT ON APPLE FRUIT RIPENING AND QUALITY AFTER HARVEST AND COLD STORAGE”
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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.