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Controlled atmosphere effects on chilling requirements for ripening and ethylene synthesis of 'Bosc' and 'Packham's Triumph' pear fruits.

Author(s) : MAAGE F., RICHARDSON D. G.

Summary

Winter pears are harvested at maturity stages which normally require a period of time in low temperature (chilling requirement) in order to ripen to optimum dessert quality. While previous research has characterized the chilling duration in air storage at -1 to 0 °C for many varieties, little is known of the effects of CA on the chilling requirement. Controlled atmosphere (1.5-2% O2 and CO2 below 0.5%) and normal air 0 °C storage were compared for effects on "Beurre Bosc" and "Packham's Triumph" pear fruit chilling requirements for ripening and sustained ethylene synthesis. CA delayed ripening and ethylene synthesis by about two weeks in both cultivars as evidenced by softening rates and sustainable internal ethylene higher than 1.0 microL/L compared to regular air cold storage.

Details

  • Original title: Controlled atmosphere effects on chilling requirements for ripening and ethylene synthesis of 'Bosc' and 'Packham's Triumph' pear fruits.
  • Record ID : 2000-3010
  • Languages: English
  • Source: CA '97. Proceedings of the 7th international controlled atmosphere research conference.
  • Publication date: 1997/07/13
  • Document available for consultation in the library of the IIR headquarters only.

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