Abstract
Calcium gradients were established in firm (`Bluecrop' and `Blueray') and soft (`Ivanhoe') highbush blueberry ( Vaccinium corymbosum L.) fruits from a 7-year-old planting at La Union, southern Chile. Manual firmness measurements established that `Ivanhoe' fruit was softer than either `Bluecrop' or `Blueray'. In all varieties, Ca concentrations were: seed > pulp > epidermis; opposite trends were found for K+Mg/Ca ratios. Seed number and Ca concentration in the pulp were negatively correlated in `Bluecrop' and `Ivanhoe', but not in `Blueray'. In a related experiment, the response of `Bluecrop' to preharvest sprays of two calcium sources (chloride and nitrate) in four doses (0, 47.5, 35, or 190 g Ca/100 liters of water) was studied; dose and source interactions were not significant. Both calcium sources affected fruit Ca concentrations similarly;l calcium applications, either as nitrate or chloride, increased Ca significantly in epidermis and seed; the highest dose was required to raise significantly Ca concentrations in the pulp. K+Mg/Ca ratios in nitrate- or chloride-treated fruit were: pulp > seed > epidermis.
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Claims 10
Claim · model-written summary
Ivanhoe fruit was softer than Bluecrop or Blueray fruit.
- Taxon
- highbush blueberry
Vaccinium corymbosume1 - Material
- `Ivanhoe'e0
- Outcome
- fruit was softere0
- Direction
- softere0
- Comparator
- `Bluecrop' or `Blueray'e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“`Ivanhoe' fruit was softer than either `Bluecrop' or `Blueray'”
e1“highbush blueberry ( Vaccinium corymbosum L.)”
Claim · model-written summary
Calcium concentration ranked seed above pulp above epidermis in all varieties.
- Taxon
- highbush blueberryVaccinium corymbosume1
- Organ / stage
- seed > pulp > epidermise0
- Outcome
- Ca concentrationse0
- Direction
- seed > pulp > epidermise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all varieties, Ca concentrations were: seed > pulp > epidermis”
e1“highbush blueberry ( Vaccinium corymbosum L.)”
Claim · model-written summary
K+Mg/Ca ratios followed the opposite fruit tissue pattern.
- Taxon
- highbush blueberryVaccinium corymbosume1
- Outcome
- K+Mg/Ca ratiose0
- Direction
- opposite trendse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“opposite trends were found for K+Mg/Ca ratios”
e1“highbush blueberry ( Vaccinium corymbosum L.)”
Claim · model-written summary
Seed number and pulp Ca concentration were negatively correlated in Bluecrop and Ivanhoe.
- Taxon
- highbush blueberryVaccinium corymbosume1
- Material
- `Bluecrop' and `Ivanhoe'e0
- Outcome
- Ca concentration in the pulpe0
- Direction
- negatively correlatede0
- Qualifier
- Seed numbere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed number and Ca concentration in the pulp were negatively correlated in `Bluecrop' and `Ivanhoe'”
e1“highbush blueberry ( Vaccinium corymbosum L.)”
Claim · model-written summary
Seed number and pulp Ca concentration were not correlated in Blueray.
- Taxon
- highbush blueberryVaccinium corymbosume1
- Material
- `Blueray'e0
- Outcome
- Ca concentration in the pulpe0
- Qualifier
- Seed numbere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed number and Ca concentration in the pulp were negatively correlated in `Bluecrop' and `Ivanhoe', but not in `Blueray'”
e1“highbush blueberry ( Vaccinium corymbosum L.)”
Claim · model-written summary
Calcium source and dose did not interact significantly.
- Taxon
- highbush blueberryVaccinium corymbosume1
- Outcome
- dose and source interactionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dose and source interactions were not significant”
e1“highbush blueberry ( Vaccinium corymbosum L.)”
Claim · model-written summary
Calcium nitrate and chloride sources similarly affected fruit Ca concentrations.
- Taxon
- highbush blueberryVaccinium corymbosume1
- Treatment
- chloride and nitratee2
- Outcome
- fruit Ca concentrationse0
- Direction
- similarlye0
- Comparator
- Both calcium sourcese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both calcium sources affected fruit Ca concentrations similarly”
e1“highbush blueberry ( Vaccinium corymbosum L.)”
e2“calcium sources (chloride and nitrate)”
Claim · model-written summary
Calcium applications significantly increased calcium in epidermis and seed.
- Taxon
- highbush blueberryVaccinium corymbosume1
- Organ / stage
- epidermis and seede0
- Treatment
- calcium applications, either as nitrate or chloridee0
- Outcome
- Cae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“calcium applications, either as nitrate or chloride, increased Ca significantly in epidermis and seed”
e1“highbush blueberry ( Vaccinium corymbosum L.)”
Claim · model-written summary
The highest calcium dose was needed for a significant increase in pulp Ca.
- Taxon
- highbush blueberryVaccinium corymbosume1
- Treatment
- the highest dosee0
- Outcome
- Ca concentrations in the pulpe0
- Direction
- raisee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest dose was required to raise significantly Ca concentrations in the pulp”
e1“highbush blueberry ( Vaccinium corymbosum L.)”
Claim · model-written summary
In calcium nitrate or chloride treated fruit, K+Mg/Ca ratios ranked pulp above seed above epidermis.
- Taxon
- highbush blueberryVaccinium corymbosume1
- Treatment
- nitrate- or chloride-treatede0
- Outcome
- K+Mg/Ca ratiose0
- Direction
- pulp > seed > epidermise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K+Mg/Ca ratios in nitrate- or chloride-treated fruit were: pulp > seed > epidermis”
e1“highbush blueberry ( Vaccinium corymbosum L.)”
The same questions in other papers
calcium atom · nutrient: content · Vaccinium corymbosum (highbush blueberry)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
nitrogen · nutrient: content · Vaccinium corymbosum (highbush blueberry)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
2 papers more in this group
See all 6 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.