Claim · model-written summary
The authors infer calcium related disorders occur only in low yield seasons with large fruits, a high leaf to fruit ratio and unknown environmental conditions.
- Taxon
- 'Gala' applese0
- Outcome
- incidence of Ca related disorderse0
- Qualifier
- only occurs on seasons with low crop yielde0
- Setting
- Brazile0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirectionValue
Verbatim
e0“It seems that the incidence of Ca related disorders in 'Gala' apples grown on limed soils in Brazil with no excess of any nutrient only occurs on seasons with low crop yield, as a result of large fruits and a high leaf/fruit ratio, associated with some unknown environmental conditions.”
Title
Preharvest calcium sprays were not always needed to improve quality of 'gala' apples in Brazil
Paulo Roberto Ernani; Jaques Dias; Cassandro Vidal Talamini do Amarante; et al. Revista Brasileira de Fruticultura 2008. doi:10.1590/s0100-29452008000400009
Other claims from this paper (6)
- Observation In five of six seasons, fruit in every treatment had no physiological disorder.
- Intervention effect Calcium sprays had no effect on leaf composition.
- Intervention effect Calcium sprays had no effect on soluble solids, titratable acidity, or starch pattern index.
- Intervention effect Calcium sprays had no effect on flesh firmness and fruit N, K, Ca, or Mg concentrations.
- Intervention effect In 2000/2001, bitter pit plus lenticel blotch pit incidence on stored fruit dropped from 24% without sprays to 2% with 12 sprays.
- Observation Two seasons later, no physiological disorder appeared regardless of calcium spray number despite low yield and large fruit.