Abstract
Owing to the high degree of perishability of the fruit, the peach industry faces serious challenges tackling physiological disorders, microbial/chemical decay, and the suboptimal quality of the fruit during and following cold storage. The present study was aimed to investigate the effects of spray applications of calcium chloride (CaCl2) at various physiological stages of fruit growth and development, on ripening, flesh softening, chilling injury (CI) and nutritional quality of peach fruit cv “Flordaking” during low-temperature storage. The aqueous solutions of CaCl2 [0, 1, 2, and 3% (w/v)] were sprayed on peach trees during cell division, pit hardening and cell expansion stages in 2011 and 2012. At commercial harvest, the fruit were hand-picked and were subjected to cold storage at 1 ± 1°C (RH: 90 ± 5%) for 6 weeks. The data on CI index and other quality characteristics of the fruit were recorded at harvest and then weekly for up to 6 weeks. The results showed that the pre-harvest spray application of CaCl2 substantially reduced the incidence of chilling injury (CI) and delayed climacteric ripening seemingly by lowering the rates of ethylene production and fruit softening during storage as compared to control, regardless the doses of CaCl2 and its application time, however higher doses of calcium chloride proved to be toxic causing blemishes on the surface of “Flordaking” peaches. In conclusion, pre-harvest spray application of CaCl2 @ 1% may be a successful production management tool to maintain the quality and to extend storability of peach fruit during cold storage.
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Claims 6
Claim · model-written summary
Preharvest calcium chloride spray reduced incidence of chilling injury (CI) during storage versus control.
- Taxon
- Peach Fruit
Prunus persicat0 - Material
- “Flordaking”e1
- Treatment
- pre-harvest spray application of CaCl2e0
- Outcome
- incidence of chilling injury (CI)e0
- Direction
- reducede0
- Qualifier
- during storagee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the pre-harvest spray application of CaCl2 substantially reduced the incidence of chilling injury (CI) and delayed climacteric ripening seemingly by lowering the rates of ethylene production and fruit softening during storage as compared to control, regardless the doses of CaCl2 and its application time”
t0“Peach Fruit”
e1““Flordaking” peaches”
Claim · model-written summary
Preharvest calcium chloride spray delayed climacteric ripening during storage versus control.
- Taxon
- Peach FruitPrunus persicat0
- Material
- “Flordaking”e1
- Treatment
- pre-harvest spray application of CaCl2e0
- Outcome
- climacteric ripeninge0
- Direction
- delayede0
- Qualifier
- during storagee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the pre-harvest spray application of CaCl2 substantially reduced the incidence of chilling injury (CI) and delayed climacteric ripening seemingly by lowering the rates of ethylene production and fruit softening during storage as compared to control, regardless the doses of CaCl2 and its application time”
t0“Peach Fruit”
e1““Flordaking” peaches”
Claim · model-written summary
Preharvest calcium chloride spray lowering rates of ethylene production during storage versus control.
- Taxon
- Peach FruitPrunus persicat0
- Material
- “Flordaking”e1
- Treatment
- pre-harvest spray application of CaCl2e0
- Outcome
- rates of ethylene productione0
- Direction
- loweringe0
- Qualifier
- during storagee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the pre-harvest spray application of CaCl2 substantially reduced the incidence of chilling injury (CI) and delayed climacteric ripening seemingly by lowering the rates of ethylene production and fruit softening during storage as compared to control, regardless the doses of CaCl2 and its application time”
t0“Peach Fruit”
e1““Flordaking” peaches”
Claim · model-written summary
Preharvest calcium chloride spray lowering fruit softening during storage versus control.
- Taxon
- Peach FruitPrunus persicat0
- Material
- “Flordaking”e1
- Treatment
- pre-harvest spray application of CaCl2e0
- Outcome
- fruit softeninge0
- Direction
- loweringe0
- Qualifier
- during storagee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the pre-harvest spray application of CaCl2 substantially reduced the incidence of chilling injury (CI) and delayed climacteric ripening seemingly by lowering the rates of ethylene production and fruit softening during storage as compared to control, regardless the doses of CaCl2 and its application time”
t0“Peach Fruit”
e1““Flordaking” peaches”
Claim · model-written summary
Higher calcium chloride doses caused surface blemishes on Flordaking peaches.
- Taxon
- Peach FruitPrunus persicat0
- Material
- “Flordaking”e0
- Treatment
- higher doses of calcium chloridee0
- Outcome
- blemishes on the surface of “Flordaking” peachese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher doses of calcium chloride proved to be toxic causing blemishes on the surface of “Flordaking” peaches”
t0“Peach Fruit”
Claim · model-written summary
The authors recommend 1% preharvest calcium chloride spray to maintain quality and extend cold storability.
- Taxon
- peach fruitPrunus persicae0
- Treatment
- pre-harvest spray application of CaCl2 @ 1%e0
- Outcome
- maintain the quality and to extend storability of peach fruit during cold storagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pre-harvest spray application of CaCl2 @ 1% may be a successful production management tool to maintain the quality and to extend storability of peach fruit during 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.