Abstract
The peach industry faces serious economic losses because of the short “green” life of the fruit at postharvest. In the present study, we investigated the effects of putrescine (PUT) application on the quality characteristics, pattern of ripening, storage behaviour and shelf life of peach fruit during low-temperature storage. The aqueous solution of PUT (0, 1, 2 and 3 mM) was applied to the peach trees at three distinctive stages of fruit growth and development. The fruits, harvested at the commercial stage of maturity, were stored at 1 ± 1 °C and 90 ± 2% relative humidity for 6 weeks. The data for fruit firmness, total soluble solids (SSC), titratable acidity (TA), ascorbic acid (AsA) content, rate of ethylene production, chilling injury (CI) index and colour perception were collected at harvest and then on a weekly basis throughout the storage period. The results showed that spray application of PUT significantly reduced the incidence of CI and reduced the rates of fruit softening, loss in fruit weight, SSC, TA, AsA content and fading of skin colour during storage, regardless of the doses of PUT applied, or the time of application. However, the positive effects on the quality characteristics of peach fruit, including CI, were more pronounced with the higher doses of PUT, specifically when applied at 2 mM. In conclusion, CI in peach fruit may be substantially alleviated by the spray application of 1–3 mM PUT during fruit growth without compromising the quality of the fruit for up to 6 weeks in low-temperature storage.
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Claims 9
Claim · model-written summary
Putrescine spray reduced chilling injury incidence in stored peach fruit.
- Taxon
- peach
Prunus persicae1 - Treatment
- spray application of PUTe0
- Outcome
- incidence of CIe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spray application of PUT significantly reduced the incidence of CI”
e1“quality characteristics of peach fruit”
Claim · model-written summary
Putrescine spray reduced the fruit softening rate during storage.
- Taxon
- peachPrunus persicae1
- Treatment
- spray application of PUTe2
- Outcome
- rates of fruit softeninge0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced the rates of fruit softening, loss in fruit weight, SSC, TA, AsA content and fading of skin colour during storage”
e1“quality characteristics of peach fruit”
e2“spray application of PUT significantly reduced the incidence of CI”
Claim · model-written summary
Putrescine spray reduced the rate of fruit weight loss during storage.
- Taxon
- peachPrunus persicae1
- Treatment
- spray application of PUTe2
- Outcome
- loss in fruit weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced the rates of fruit softening, loss in fruit weight, SSC, TA, AsA content and fading of skin colour during storage”
e1“quality characteristics of peach fruit”
e2“spray application of PUT significantly reduced the incidence of CI”
Claim · model-written summary
Putrescine spray reduced the rate of soluble solids loss during storage.
- Taxon
- peachPrunus persicae1
- Treatment
- spray application of PUTe2
- Outcome
- SSCe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced the rates of fruit softening, loss in fruit weight, SSC, TA, AsA content and fading of skin colour during storage”
e1“quality characteristics of peach fruit”
e2“spray application of PUT significantly reduced the incidence of CI”
Claim · model-written summary
Putrescine spray reduced the rate of titratable acidity loss during storage.
- Taxon
- peachPrunus persicae1
- Treatment
- spray application of PUTe2
- Outcome
- TAe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced the rates of fruit softening, loss in fruit weight, SSC, TA, AsA content and fading of skin colour during storage”
e1“quality characteristics of peach fruit”
e2“spray application of PUT significantly reduced the incidence of CI”
Claim · model-written summary
Putrescine spray reduced the rate of ascorbic acid content loss during storage.
- Taxon
- peachPrunus persicae1
- Treatment
- spray application of PUTe2
- Outcome
- AsA contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced the rates of fruit softening, loss in fruit weight, SSC, TA, AsA content and fading of skin colour during storage”
e1“quality characteristics of peach fruit”
e2“spray application of PUT significantly reduced the incidence of CI”
Claim · model-written summary
Putrescine spray reduced skin colour fading during storage.
- Taxon
- peachPrunus persicae1
- Treatment
- spray application of PUTe2
- Outcome
- fading of skin coloure0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced the rates of fruit softening, loss in fruit weight, SSC, TA, AsA content and fading of skin colour during storage”
e1“quality characteristics of peach fruit”
e2“spray application of PUT significantly reduced the incidence of CI”
Claim · model-written summary
Higher putrescine doses, especially 2 mM, produced more pronounced fruit quality benefits.
- Taxon
- peachPrunus persicae0
- Treatment
- 2 mMe0
- Outcome
- quality characteristics of peach fruit, including CIe0
- Direction
- more pronouncede0
- Comparator
- higher doses of PUTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“positive effects on the quality characteristics of peach fruit, including CI, were more pronounced with the higher doses of PUT, specifically when applied at 2 mM”
Claim · model-written summary
The authors recommend 1–3 mM putrescine spray during fruit growth to alleviate chilling injury for up to six weeks of cold storage.
- Taxon
- peachPrunus persicae0
- Treatment
- spray application of 1–3 mM PUTe0
- Outcome
- CI in peach fruit may be substantially alleviatede0
- Qualifier
- for up to 6 weeks in low-temperature storagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CI in peach fruit may be substantially alleviated by the spray application of 1–3 mM PUT during fruit growth without compromising the quality of the fruit for up to 6 weeks in low-temperature storage”
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See all 23 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.