Red colour development and loss in pears

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dc.contributor.authorSteyn, Willem J.
dc.contributor.authorWand, S. J. E.
dc.contributor.authorHolcroft, D. M.
dc.contributor.authorJacobs, G.
dc.date.accessioned2012-08-10T15:12:27Z
dc.date.available2012-08-10T15:12:27Z
dc.date.issued2005-04
dc.descriptionThe original publication is available at http://www.actahort.org/books/671/671_9.htmen_ZA
dc.descriptionCICATION: Steyn, W. J., Wand, S. J. E., Holcroft, D. M. & Jacobs, G. 2005. Red colour development and loss in pears. Acta Hort. (ISHS) 671:79-85.en_ZA
dc.description.abstractThe endogenous and environmental regulation of red colour development in blushed and fully red pears is reviewed. Colour development in pears has an underlying developmental component. Generally, highest anthocyanin concentrations are attained in immature pears and colour tends to fade towards harvest. This is contrary to most other crop species where maximum pigmentation and colour are attained in ripe fruit and may relate to the photoprotective ability of anthocyanins. Because of this pigmentation pattern, net anthocyanin degradation at high temperatures results in pre-harvest red colour loss in susceptible pear cultivars. Susceptibility depends on the capacity to accumulate anthocyanin and on whether low temperatures are required for anthocyanin synthesis. Unlike apples, where red colour development in all cultivars seems to require or benefit from low temperatures, not all pear cultivars seem to respond to low temperatures. Light appears to have two opposing effects in pears, being required for anthocyanin synthesis, but also apparently increasing red colour loss through increased degradation of anthocyanin.en_ZA
dc.format.extent7 p. : ill.
dc.identifier.citationSteyn, W. J., Wand, S. J. E., Holcroft, D. M. & Jacobs, G. 2005. Red colour development and loss in pears. Acta Hort. (ISHS) 671:79-85.en_ZA
dc.identifier.issn0567-7572 (print)
dc.identifier.urihttp://hdl.handle.net/10019.1/38944
dc.language.isoen_ZAen_ZA
dc.publisherInternational Society for Horticultural Science -- ISHSen_ZA
dc.rights.holderInternational Society for Horticultural Science -- ISHSen_ZA
dc.subjectPears -- Colour developmenten_ZA
dc.subjectPears -- Colour -- Fadingen_ZA
dc.titleRed colour development and loss in pearsen_ZA
dc.typeArticleen_ZA
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