Abstract
‘Honeycrisp’ apples are prone to physiological disorder development during storage, fruit susceptibility to disorder incidence being affected by harvest date. The effects of fruit maturity from untreated trees and those sprayed at 1 week before the first harvest with 1-methylcyclopropene (1-MCP; Harvista TM ) were investigated by categorizing fruit into index of absorbance difference ( I AD ) values before storage. Maturity indices, chlorophyll, carotenoid, and sugar concentrations were assessed at harvest. The incidences of physiological disorders were assessed after 4 months plus 7 days at 20 °C. The internal ethylene concentration and the starch pattern index were lower in fruit treated with preharvest 1-MCP compared with untreated fruit, while fruit firmness was higher in preharvest 1-MCP–treated fruit. The difference was more pronounced in fruit with higher I AD values (higher chlorophyll) categories at harvests 2 and 3. Chlorophyll a and total chlorophyll concentrations were positively correlated with the I AD values in both untreated and preharvest 1-MCP–treated fruit. Acetaldehyde and ethanol were unaffected by harvest time, but preharvest 1-MCP–treated fruit had lower ethyl acetate accumulation at all harvests. Sucrose, fructose, glucose, galactose, sorbitol, and malic acid concentrations were often higher in preharvest 1-MCP–treated fruit than in untreated fruit. Soft scald incidence was higher in fruit with lower I AD values. However, the disorder was lowest in harvest 1 and 2 fruit of higher I AD values when the fruit were treated with preharvest 1-MCP. Additionally, fruit senescence was higher in late-harvested fruit. Principal components analysis, multivariate analysis, and the nonlinear iterative partial least square algorithm showed that fruit physiological disorder development after storage was correlated with fruit maturity based on the I AD value and maturity at harvest as affected by preharvest 1-MCP treatment.
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Claims 12
Claim · model-written summary
Preharvest 1-MCP lowered internal ethylene concentration and starch pattern index in apples compared with untreated fruit.
- Taxon
- apples
Malus domesticae0 - Material
- Honeycrispt0
- Treatment
- preharvest 1-MCPe1
- Outcome
- internal ethylene concentration and the starch pattern indexe1
- Direction
- lowere1
- Comparator
- untreated fruite1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e1“The internal ethylene concentration and the starch pattern index were lower in fruit treated with preharvest 1-MCP compared with untreated fruit”
Claim · model-written summary
Preharvest 1-MCP increased fruit firmness compared with untreated fruit.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Treatment
- preharvest 1-MCPe2
- Outcome
- fruit firmnesse2
- Direction
- highere2
- Comparator
- untreated fruite2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e2“compared with untreated fruit, while fruit firmness was higher in preharvest 1-MCP–treated fruit”
Claim · model-written summary
The 1-MCP difference in fruit traits was more pronounced in fruit with higher IAD values at harvests 2 and 3.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Outcome
- differencee3
- Direction
- more pronouncede3
- Qualifier
- fruit with higher I AD valuese3
- Setting
- harvests 2 and 3e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e3“The difference was more pronounced in fruit with higher I AD values (higher chlorophyll) categories at harvests 2 and 3”
Claim · model-written summary
Chlorophyll a and total chlorophyll concentrations were positively correlated with IAD values in untreated and 1-MCP-treated fruit.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Outcome
- Chlorophyll a and total chlorophyll concentrationse4
- Direction
- positively correlatede4
- Qualifier
- I AD valuese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e4“Chlorophyll a and total chlorophyll concentrations were positively correlated with the I AD values in both untreated and preharvest 1-MCP–treated fruit”
Claim · model-written summary
Harvest time did not affect acetaldehyde and ethanol concentrations in apples.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Treatment
- harvest timee5
- Outcome
- Acetaldehyde and ethanole5
- Direction
- unaffectede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e5“Acetaldehyde and ethanol were unaffected by harvest time”
Claim · model-written summary
Preharvest 1-MCP lowered ethyl acetate accumulation at all harvests.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Treatment
- preharvest 1-MCPe6
- Outcome
- ethyl acetate accumulatione6
- Direction
- lowere6
- Qualifier
- at all harvestse6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e6“preharvest 1-MCP–treated fruit had lower ethyl acetate accumulation at all harvests”
Claim · model-written summary
Preharvest 1-MCP often increased sucrose, fructose and glucose concentrations compared with untreated fruit.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Treatment
- preharvest 1-MCPe7
- Outcome
- Sucrose, fructose, glucosee7
- Direction
- often highere7
- Comparator
- untreated fruite7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e7“Sucrose, fructose, glucose, galactose, sorbitol, and malic acid concentrations were often higher in preharvest 1-MCP–treated fruit than in untreated fruit”
Claim · model-written summary
Preharvest 1-MCP often increased galactose, sorbitol and malic acid concentrations compared with untreated fruit.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Treatment
- preharvest 1-MCPe7
- Outcome
- galactose, sorbitol, and malic acide7
- Direction
- often highere7
- Comparator
- untreated fruite7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e7“Sucrose, fructose, glucose, galactose, sorbitol, and malic acid concentrations were often higher in preharvest 1-MCP–treated fruit than in untreated fruit”
Claim · model-written summary
Soft scald incidence was higher in fruit with lower IAD values.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Outcome
- Soft scald incidencee1
- Direction
- highere1
- Qualifier
- fruit with lower I AD valuese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e1“Soft scald incidence was higher in fruit with lower I AD values”
Claim · model-written summary
With preharvest 1-MCP, the disorder was lowest in harvest 1 and 2 fruit of higher IAD values.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Treatment
- preharvest 1-MCPe1
- Outcome
- disordere1
- Direction
- loweste1
- Qualifier
- harvest 1 and 2 fruit of higher I AD valuese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e1“the disorder was lowest in harvest 1 and 2 fruit of higher I AD values when the fruit were treated with preharvest 1-MCP”
Claim · model-written summary
Fruit senescence was higher in late-harvested apples.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Treatment
- late-harvested fruite1
- Outcome
- fruit senescencee1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e1“fruit senescence was higher in late-harvested fruit”
Claim · model-written summary
Physiological disorder development after storage was correlated with IAD-based maturity and with harvest maturity affected by preharvest 1-MCP.
- Taxon
- applesMalus domesticae0
- Material
- Honeycrispt0
- Treatment
- preharvest 1-MCP treatmente1
- Outcome
- fruit physiological disorder development after storagee1
- Direction
- correlatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apples are prone to physiological disorder development during storage”
t0“Honeycrisp”
e1“fruit physiological disorder development after storage was correlated with fruit maturity based on the I AD value and maturity at harvest as affected by preharvest 1-MCP treatment”
The same questions in other papers
1-methylcyclopropene · quality: postharvest · Malus domestica (apple)Results differ
112 papers in the same direction as this paper · 7 in the opposite direction
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