How to minimise apple internal breakdown
A good crop nutrition can help to minimize internal breakdown incidence in apples. It can be associated with intense water core disorder, cold storage, and boron and phosphorus deficiencies.
Internal breakdown in apple is the breakdown of internal tissues resulting from fluid oxidation. In severe cases, tissues become spongy. It can be associated with intense water core disorder, cold storage, and boron and phosphorus deficiencies.
Phosphorus can help reduce internal breakdown occurrence
By ensuring supplies to apples are not limiting, internal cell wall collapse is avoided and low temperature breakdown and internal browning minimized.
Trials show that phosphate improves long-term storage characteristics in apples and reduces storage disorders incidence such as internal browning and core flush.
Calcium improves all aspects of fruit quality
Low calcium nutrition increases the incidence of internal breakdown. Soil supply is important, but it should be backed by fruit applied sprays. The greater the number of sprays the better, it gets more calcium into the fruit, improving its health and quality.
Boron excess can increase breakdown
Excessive boron increases the incidence of apple internal breakdown.
Recommended fertilisers for apples
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Inadequate supply of calcium is a major contributing factor to water core. Watercore develops in mature apples when the sugar sorbitol is translocated into the fruit faster than it can be assimilated.
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Nutrition can influence apple firmness. Nitrogen, potassium and calcium are the most important nutrients.
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Identify and diagnose if your apple trees are suffering from nutrient deficiencies and learn more about the symptoms and causes and how to control or correct the deficiency
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Apple nutrient requirements vary depending on the crop growth stage. Find out which nutrients are most important at different growth stages.
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