Abstract
AVG, as ReTain™, an inhibitor of ethylene biosynthesis, was used alone or with a subsequent application of ethephon (Ethrel™), an ethylene-releasing chemical, to determine if red color development could be enhanced without over-ripening `Gala' and `Jonagold' apples. Treatments included: 1) AVG alone; 2) AVG followed by ethephon; 3) ethephon alone; and 4) control. Silwet L-77 surfactant was included in all treatments. Application of AVG delayed the onset of the ethylene climacteric and red color development of both cultivars. Application of AVG followed by ethephon similarly delayed the onset of the ethylene climacteric, but red color development at the commercial harvest date was only marginally reduced or not affected. The results were similar in both 1998 and 1999, although environmental stress during the growing seasons differed (1998—heat; 1999—moderate temperatures). The delay of fruit maturation and ripening observed at harvest following AVG +/- ethephon treatments improved storability of fruit in controlled atmosphere (CA) storage, as demonstrated by low internal ethylene levels after storage, and high retention of flesh firmness and shelf-life, while control fruit and those treated only with ethephon entered the ethylene climacteric during storage, and flesh firmness subsequently declined during shelf-life evaluation. Chemical name used: aminoethoxyvinylglycine (AVG).
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Claims 9
Claim · model-written summary
AVG application delayed the onset of the ethylene climacteric in apples relative to control.
- Taxon
- apples
Malus domesticae0 - Material
- `Gala' and `Jonagold'e0
- Treatment
- Application of AVGe2
- Outcome
- onset of the ethylene climacterice2
- Direction
- delayede2
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine if red color development could be enhanced without over-ripening `Gala' and `Jonagold' apples”
e1“Treatments included: 1) AVG alone; 2) AVG followed by ethephon; 3) ethephon alone; and 4) control”
e2“Application of AVG delayed the onset of the ethylene climacteric and red color development of both cultivars”
Claim · model-written summary
AVG application delayed red colour development in apples relative to control.
- Taxon
- applesMalus domesticae0
- Material
- `Gala' and `Jonagold'e0
- Treatment
- Application of AVGe2
- Outcome
- red color developmente2
- Direction
- delayede2
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine if red color development could be enhanced without over-ripening `Gala' and `Jonagold' apples”
e1“Treatments included: 1) AVG alone; 2) AVG followed by ethephon; 3) ethephon alone; and 4) control”
e2“Application of AVG delayed the onset of the ethylene climacteric and red color development of both cultivars”
Claim · model-written summary
AVG followed by ethephon delayed the onset of the ethylene climacteric in apples, similarly to AVG alone.
- Taxon
- applesMalus domesticae0
- Material
- `Gala' and `Jonagold'e0
- Treatment
- AVG followed by ethephone3
- Outcome
- onset of the ethylene climacterice3
- Direction
- delayede3
- Comparator
- AVG alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine if red color development could be enhanced without over-ripening `Gala' and `Jonagold' apples”
e1“Treatments included: 1) AVG alone; 2) AVG followed by ethephon; 3) ethephon alone; and 4) control”
e3“Application of AVG followed by ethephon similarly delayed the onset of the ethylene climacteric, but red color development at the commercial harvest date was only marginally reduced or not affected”
Claim · model-written summary
AVG followed by ethephon left red colour at the commercial harvest date only marginally reduced or not affected.
- Taxon
- applesMalus domesticae0
- Material
- `Gala' and `Jonagold'e0
- Treatment
- AVG followed by ethephone3
- Outcome
- red color development at the commercial harvest datee3
- Direction
- only marginally reduced or not affectede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine if red color development could be enhanced without over-ripening `Gala' and `Jonagold' apples”
e3“Application of AVG followed by ethephon similarly delayed the onset of the ethylene climacteric, but red color development at the commercial harvest date was only marginally reduced or not affected”
Claim · model-written summary
AVG with or without ethephon improved apple storability in controlled atmosphere storage relative to control fruit.
- Taxon
- applesMalus domesticae0
- Treatment
- AVG +/- ethephon treatmentse4
- Outcome
- storability of fruite4
- Direction
- improvede4
- Comparator
- control fruite6
- Setting
- controlled atmosphere (CA) storagee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine if red color development could be enhanced without over-ripening `Gala' and `Jonagold' apples”
e4“The delay of fruit maturation and ripening observed at harvest following AVG +/- ethephon treatments improved storability of fruit in controlled atmosphere (CA) storage”
e6“while control fruit and those treated only with ethephon entered the ethylene climacteric during storage, and flesh firmness subsequently declined during shelf-life evaluation”
Claim · model-written summary
AVG with or without ethephon gave low internal ethylene levels after controlled atmosphere storage.
- Taxon
- applesMalus domesticae0
- Treatment
- AVG +/- ethephon treatmentse4
- Outcome
- internal ethylene levels after storagee5
- Direction
- lowe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine if red color development could be enhanced without over-ripening `Gala' and `Jonagold' apples”
e4“The delay of fruit maturation and ripening observed at harvest following AVG +/- ethephon treatments improved storability of fruit in controlled atmosphere (CA) storage”
e5“as demonstrated by low internal ethylene levels after storage, and high retention of flesh firmness and shelf-life”
Claim · model-written summary
AVG with or without ethephon gave high retention of flesh firmness and shelf-life after storage.
- Taxon
- applesMalus domesticae0
- Treatment
- AVG +/- ethephon treatmentse4
- Outcome
- retention of flesh firmness and shelf-lifee5
- Direction
- highe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine if red color development could be enhanced without over-ripening `Gala' and `Jonagold' apples”
e4“The delay of fruit maturation and ripening observed at harvest following AVG +/- ethephon treatments improved storability of fruit in controlled atmosphere (CA) storage”
e5“as demonstrated by low internal ethylene levels after storage, and high retention of flesh firmness and shelf-life”
Claim · model-written summary
Control fruit and fruit treated only with ethephon entered the ethylene climacteric during storage.
- Taxon
- applesMalus domesticae0
- Treatment
- treated only with ethephone6
- Outcome
- entered the ethylene climacterice6
- Qualifier
- during storagee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine if red color development could be enhanced without over-ripening `Gala' and `Jonagold' apples”
e6“while control fruit and those treated only with ethephon entered the ethylene climacteric during storage, and flesh firmness subsequently declined during shelf-life evaluation”
Claim · model-written summary
Flesh firmness of apples declined during shelf-life evaluation in control and ethephon-only fruit.
- Taxon
- applesMalus domesticae0
- Outcome
- flesh firmnesse6
- Direction
- declinede6
- Qualifier
- during shelf-life evaluatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine if red color development could be enhanced without over-ripening `Gala' and `Jonagold' apples”
e6“while control fruit and those treated only with ethephon entered the ethylene climacteric during storage, and flesh firmness subsequently declined during shelf-life evaluation”
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