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La durée de conservation en vase des fleurs oiseau de paradis est influencée par les traitements pulsés et la durée de l'entreposage frigorifique.

Vase life of bird-of-paradise flowers influenced by pulsing and duration of cold storage.

Auteurs : FINGER F. L., MORAES P. J. de, BARBOSA J. G., et al.

Résumé

Bird-of-paradise flowers were harvested at the commercial stage and stored at 10 °C for 7, 14, 21 and 28 days. The flowers were recut at 2 cm from the stalk base and pulsed with 40% sucrose for 24 hours before or after cold storage, while the control stalks were treated with distilled water. Long-term storage reduced the flower vase life for all treatments, with a smaller decrease for those flowers pulsed with sucrose immediately after cold storage. A pulsing treatment following storage for 7 and 14 days improved flower vase life by increasing the number of open florets. Storage for 28 days at 10 °C induced chilling injury symptoms in the bracts and sepals, and allowed development of Penicillium sp. in the petals. The best extension of post-storage longevity occurred after storing flowers up to 14 days at 10 °C, followed by pulsing treatment with 40% sucrose for 24 hours.

Détails

  • Titre original : Vase life of bird-of-paradise flowers influenced by pulsing and duration of cold storage.
  • Identifiant de la fiche : 2005-0849
  • Langues : Anglais
  • Date d'édition : 2003
  • Source : Source : Acta Hortic./Proc. int. hortic. Congr., Toronto
    n. 628; vol. 2; 863-867; 9 ref.

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