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A prediction model for superficial scald development on Granny Smith apples after cold storage.

Author(s) : LOURENS A. F., MALHERBE A.

Summary

Fruit maturity indicators, skin macro-elements and hexane skin extracts of "Granny Smith" apples from four areas in the Western Cape region of South Africa were recorded at harvest over three picking dates for 4 consecutive years. The variables were analyzed for significant correlation with superficial scald incidence assessed after 4 months of cold storage. Starch conversion as maturity index and alpha-farnesene, conjugated triene hydroperoxides and optical density at 200 nm (anti-oxidant activity) in hexane extracts correlated significantly with superficial scald incidence, but with some variation between the harvest areas. Other correlations were found. Stepwise regression analyzes were used to generate superficial scald prediction models.

Details

  • Original title: A prediction model for superficial scald development on Granny Smith apples after cold storage.
  • Record ID : 2000-1938
  • Languages: English
  • Source: Proceedings of the International Symposium on effect of preharvest and postharvest factors on storage of fruit.
  • Publication date: 1999/03
  • Document available for consultation in the library of the IIR headquarters only.

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