Claim · model-written summary
Calcium sprays reduced internal breakdown in Red Delicious apples.
- Taxon
- apples
Malus domesticae0 - Material
- Red Deliciouse0
- Treatment
- Calcium sprayse0
- Outcome
- internal breakdowne0
- Direction
- reducede0
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calcium sprays reduced internal breakdown in ‘Cox's Orange’ and ‘Red Delicious’ apples.”
Title
Calcium sprays for control of bitter pit and other disorders in apples
E. T. Chittenden; D. J. Stanton; J. Watson New Zealand Journal of Crop and Horticultural Science 1973. doi:10.1080/03015521.1973.10427623
Other claims from this paper (13)
- Intervention effect Four early calcium nitrate sprays gave no bitter pit control.
- Intervention effect Calcium nitrate sprays at 11, 27 and 64 days before harvest controlled bitter pit.
- Observation The 64-day preharvest period gave slightly less bitter pit in one season.
- Observation Fruit calcium was highest with the 27-day preharvest spray period.
- Intervention effect Six 0.6% calcium nitrate sprays doubled total apple calcium over 64 days before harvest.
- Observation Unsprayed apple total calcium remained practically constant.
- Observation Apple weight increased fourfold during the 64-day period.
- Observation Calcium percentage in sprayed apples fell to one-half.
- Observation Calcium percentage in unsprayed apples fell to near one-quarter.
- Intervention effect Calcium sprays reduced internal breakdown in Cox’s Orange apples.
- Intervention effect Calcium nitrate retarded Red Delicious color development.
- Intervention effect Calcium chloride sprays did not retard Red Delicious color development.
- Intervention effect Spray-protected apples gained no benefit from four calcium nitrate sprays applied to the rest of the tree.