Abstract
Preharvest foliar calcium (Ca) products sprays (@ 1%) supplied as Ca oxide, Ca chloride, or Ca thiosulfate were applied on four peach cvs. to determine the effect of Ca formulations on fruit quality and shelf life. Treatments were designed to cover the entire period of fruit growth from fruit set to maturity, thus each calcium formulation was applied three to four times at 6 to 15-days interval depending on fruit growth rate. Multiple harvest times were realized with the progress of fruit commercial maturity, fruit samples of the first and last harvest of each cv. were either analyzed or stored for shelf life evaluation. Treatments with Ca products resulted in a significant increase in fruit firmness, for both harvests of all peach cvs., maximum increase was obtained by Ca chloride applications in three cvs., while fruit acidity was slightly increased in three varieties. Applications of Ca also reduced the number of fruit with split pit. Postharvest fruit weight loss was decreased by Ca treatments after 8 days storage; maximum storage period occurred with Ca chloride treatment, followed by Ca oxide treatment at the second position. Decay incidence was consistently reduced by Ca application for all peach cvs, mostly for the first harvest, relatively to the second one; the lowest rate of decay was recorded for Ca chloride treatment. Keys words: Prunus persica, firmness, storage, decay incidence
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Claims 10
Claim · model-written summary
Calcium products significantly increased fruit firmness in both harvests of all peach cultivars.
- Taxon
- peach
Prunus persicae0 - Treatment
- Ca productse0
- Outcome
- fruit firmnesse0
- Direction
- increasee0
- Qualifier
- both harvests of all peach cvs.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments with Ca products resulted in a significant increase in fruit firmness, for both harvests of all peach cvs.”
Claim · model-written summary
Calcium chloride gave the greatest firmness increase in three cultivars.
- Taxon
- peachPrunus persicae1
- Treatment
- Ca chloride applicationse0
- Outcome
- increasee0
- Direction
- maximum increasee0
- Qualifier
- three cvs.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum increase was obtained by Ca chloride applications in three cvs.”
e1“four peach cvs.”
Claim · model-written summary
Fruit acidity increased slightly in three varieties.
- Taxon
- peachPrunus persicae1
- Treatment
- calcium (Ca) products sprays (@ 1%)e1
- Outcome
- fruit aciditye0
- Direction
- increasede0
- Qualifier
- three varietiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit acidity was slightly increased in three varieties”
e1“Preharvest foliar calcium (Ca) products sprays (@ 1%) supplied as Ca oxide, Ca chloride, or Ca thiosulfate were applied on four peach cvs.”
Claim · model-written summary
Calcium applications reduced split pits.
- Taxon
- peachPrunus persicae1
- Treatment
- Cae0
- Outcome
- number of fruit with split pite0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applications of Ca also reduced the number of fruit with split pit”
e1“four peach cvs.”
Claim · model-written summary
Calcium treatments reduced fruit weight loss after eight days of storage.
- Taxon
- peachPrunus persicae1
- Treatment
- Ca treatmentse0
- Outcome
- Postharvest fruit weight losse0
- Direction
- decreasede0
- Qualifier
- after 8 days storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Postharvest fruit weight loss was decreased by Ca treatments after 8 days storage”
e1“four peach cvs.”
Claim · model-written summary
Calcium chloride gave the longest storage period.
- Taxon
- peachPrunus persicae1
- Treatment
- Ca chloride treatmente0
- Outcome
- storage periode0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum storage period occurred with Ca chloride treatment”
e1“four peach cvs.”
Claim · model-written summary
Calcium oxide ranked second for storage period.
- Taxon
- peachPrunus persicae1
- Treatment
- Ca oxide treatmente0
- Outcome
- second positione0
- Direction
- second positione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“followed by Ca oxide treatment at the second position”
e1“four peach cvs.”
Claim · model-written summary
Calcium applications reduced decay incidence in all cultivars.
- Taxon
- peachPrunus persicae0
- Treatment
- Ca applicatione0
- Outcome
- Decay incidencee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Decay incidence was consistently reduced by Ca application for all peach cvs”
e1“four peach cvs.”
Claim · model-written summary
The decay reduction was more marked in the first harvest than the second.
- Taxon
- peachPrunus persicae1
- Outcome
- Decay incidencee1
- Direction
- mostlye0
- Qualifier
- first harveste0
- Comparator
- second onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mostly for the first harvest, relatively to the second one”
e1“Decay incidence was consistently reduced by Ca application for all peach cvs”
Claim · model-written summary
Calcium chloride produced the lowest decay rate.
- Taxon
- peachPrunus persicae1
- Treatment
- Ca chloride treatmente0
- Outcome
- rate of decaye0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest rate of decay was recorded for Ca chloride treatment”
e1“four peach cvs.”
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See all 20 papers →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.