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Pratiques commerciales utilisées pour l'entreposage sous atmosphère contrôlée des kiwis de la variété "Hayward".

Commercial practices used for controlled atmosphere storage of 'Hayward' kiwifruit.

Auteurs : LALLU N., BURDON J., YEARSLEY C. W., et al.

Type d'article : Article de périodique

Résumé

Three experiments were conducted in New Zealand to evaluate the relationship between the fruit characteristics, harvest maturity or date, rates of CO2 establishment and the occurrence of soft fruit, physiological pitting, fungal pitting and stem end rots in 'Hayward' kiwifruits under controlled atmosphere (CA) storage. The firmness, soluble solids content and dry matter of fruits at harvest from 9 orchards were not strongly related to the incidence of disorders in CA-stored kiwifruits 6 weeks after the end of CA storage. However, the expression of physiological pitting was positively related to the degree of weight loss during CA storage. Response to low O2 stress at harvest was also not related to disorder incidence. Similarly, the incidence of disorders amongst fruits from 4 orchards harvested at intervals of 5 days over a period of 15 days during commercial harvest was not markedly different between harvest dates. The incidence of physiological pitting was reduced by a longer delay prior to or by a slower rate of CO2 establishment. It is concluded that identification of orchards as suitable for CA storage is not based simply on the characteristics of fruits at harvest, and that store operational factors, particularly those that affect weight loss and atmosphere management, are likely to be at least, if not more, important than the variables at harvest.

Détails

  • Titre original : Commercial practices used for controlled atmosphere storage of 'Hayward' kiwifruit.
  • Identifiant de la fiche : 2004-2299
  • Langues : Anglais
  • Source : Acta Hortic. - n. 610
  • Date d'édition : 2003

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