IAA increases anthocyanin content of cut oriental hybrid lily flowers

X. M. Geng, J. Liu, Y. F. Ding, H. Okubo, I. Miyajima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Effects of pulsing solutions containing different concentrations of IAA on postharvest quality and some related physiological indicators of cut flowers of Oriental hybrid lily were investigated. The application of sucrose and 8-hydroxyquinoline citrate (8-HQC) prolonged vase life of cut flowers, increased their fresh weight and ornamental quality. Addition of lower concentrations of IAA with sucrose and 8-HQC increased anthocyanin content in the petals, but did not significantly affect the vase life, diameter of the opened flowers, chlorophyll content in leaves and other related morphological indicators. It also decreased the content of soluble proteins and induced the accumulation of malondialdehyde (MDA). The application of higher concentrations of IAA reduced the vase life, anthocyanin level in petals and the size of opened flowers. In particular, 50 mg·L-1 IAA depressed the increase of fresh weight of cut flowers and absorption of sucrose during the treatment. Higher concentrations of IAA, however, increased the content of soluble proteins at the beginning of the postharvest period and depressed MDA accumulation in the petals. The results in this study suggest that auxin is not the predominant factor inducing senescence of cut lilies, but may increase anthocyanin content in flowers during the postharvest display.

Original languageEnglish
Title of host publicationInternational Conference on Quality Management in Supply Chains of Ornamental QMSCO2012
PublisherInternational Society for Horticultural Science
Pages241-250
Number of pages10
ISBN (Print)9789066057357
DOIs
Publication statusPublished - Jan 11 2013

Publication series

NameActa Horticulturae
Volume970
ISSN (Print)0567-7572

All Science Journal Classification (ASJC) codes

  • Horticulture

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