Abstract
Effects of CaCl 2 preharvest treatment on postharvest strawberry (Fragaria × ananassa) ripening and gray mold development were assessed. Two experiments were carried out in 1987 on two sites. In the first experiment, the effects of rate of application of CaCl 2 and degree of fruit maturity at treatment were studied with the conventional cultivar Kent. In the second experiment, the influence of concentration and frequency of application of CaCl 2 was investigated with day-neutral `Tribute'. Calcium treatment caused a significant increase in fruit and leaf Ca contents, which were closely correlated. The degree of fruit maturity at application and the frequency of treatment did not affect Ca concentration in the tissues. Several maturity criteria were measured during fruit storage in air at 4C. Anthocyanin and free-sugar contents and tissue electrical conductivity increased, while titratable acidity and firmness decreased. In both experiments, Ca treatment delayed ripening and gray mold development. The delay increased with increasing Ca concentration.
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Claims 9
Claim · model-written summary
Calcium treatment significantly increased fruit and leaf Ca contents in strawberry.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassae1 - Treatment
- Calcium treatmente2
- Outcome
- fruit and leaf Ca contentse2
- Direction
- increasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e1“Effects of CaCl 2 preharvest treatment on postharvest strawberry (Fragaria × ananassa) ripening and gray mold development were assessed”
e2“Calcium treatment caused a significant increase in fruit and leaf Ca contents, which were closely correlated”
Claim · model-written summary
Fruit and leaf Ca contents in strawberry were closely correlated.
- Taxon
- strawberryFragaria ×ananassae1
- Organ / stage
- fruit and leafe2
- Outcome
- fruit and leaf Ca contentse2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effects of CaCl 2 preharvest treatment on postharvest strawberry (Fragaria × ananassa) ripening and gray mold development were assessed”
e2“Calcium treatment caused a significant increase in fruit and leaf Ca contents, which were closely correlated”
Claim · model-written summary
Anthocyanin and free-sugar contents and tissue electrical conductivity of strawberry increased during storage.
- Taxon
- strawberryFragaria ×ananassae1
- Outcome
- Anthocyanin and free-sugar contents and tissue electrical conductivitye3
- Direction
- increasede3
- Setting
- fruit storage in air at 4Ce7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effects of CaCl 2 preharvest treatment on postharvest strawberry (Fragaria × ananassa) ripening and gray mold development were assessed”
e3“Anthocyanin and free-sugar contents and tissue electrical conductivity increased, while titratable acidity and firmness decreased”
e7“Several maturity criteria were measured during fruit storage in air at 4C”
Claim · model-written summary
Titratable acidity and firmness of strawberry decreased during storage.
- Taxon
- strawberryFragaria ×ananassae1
- Outcome
- titratable acidity and firmnesse3
- Direction
- decreasede3
- Setting
- fruit storage in air at 4Ce7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effects of CaCl 2 preharvest treatment on postharvest strawberry (Fragaria × ananassa) ripening and gray mold development were assessed”
e3“Anthocyanin and free-sugar contents and tissue electrical conductivity increased, while titratable acidity and firmness decreased”
e7“Several maturity criteria were measured during fruit storage in air at 4C”
Claim · model-written summary
Ca treatment delayed ripening of strawberry.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- Ca treatmente4
- Outcome
- ripeninge4
- Direction
- delayede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effects of CaCl 2 preharvest treatment on postharvest strawberry (Fragaria × ananassa) ripening and gray mold development were assessed”
e4“Ca treatment delayed ripening and gray mold development”
Claim · model-written summary
Ca treatment delayed gray mold development in strawberry.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- Ca treatmente4
- Interactor
- gray molde4pathogen
- Outcome
- gray mold developmente4
- Direction
- delayede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effects of CaCl 2 preharvest treatment on postharvest strawberry (Fragaria × ananassa) ripening and gray mold development were assessed”
e4“Ca treatment delayed ripening and gray mold development”
Claim · model-written summary
The delay in strawberry ripening and gray mold increased with increasing Ca concentration.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- increasing Ca concentratione5
- Outcome
- delaye5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effects of CaCl 2 preharvest treatment on postharvest strawberry (Fragaria × ananassa) ripening and gray mold development were assessed”
e5“The delay increased with increasing Ca concentration”
Claim · model-written summary
The degree of fruit maturity at application did not affect Ca concentration in strawberry tissues.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- degree of fruit maturity at applicatione6
- Outcome
- Ca concentratione6
- Direction
- did not affecte6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effects of CaCl 2 preharvest treatment on postharvest strawberry (Fragaria × ananassa) ripening and gray mold development were assessed”
e6“The degree of fruit maturity at application and the frequency of treatment did not affect Ca concentration in the tissues”
Claim · model-written summary
The frequency of treatment did not affect Ca concentration in strawberry tissues.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- frequency of treatmente6
- Outcome
- Ca concentratione6
- Direction
- did not affecte6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effects of CaCl 2 preharvest treatment on postharvest strawberry (Fragaria × ananassa) ripening and gray mold development were assessed”
e6“The degree of fruit maturity at application and the frequency of treatment did not affect Ca concentration in the tissues”
The same questions in other papers
calcium atom · quality: postharvest · Fragaria x ananassa (strawberry)Results differ
17 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- no effect
18 papers more in this group
See all 22 papers →calcium atom · growth · Fragaria x ananassa (strawberry)Positive and negative results
15 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
13 papers more in this group
See all 17 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.