Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/10434
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dc.contributor.authorMcFadyen, Lisa Mareeen
dc.contributor.authorRobertson, Den
dc.contributor.authorSedgley, Margareten
dc.contributor.authorKristiansen, Paulen
dc.contributor.authorOlesen, Trevor Daviden
dc.date.accessioned2012-06-13T12:03:00Z-
dc.date.issued2012-
dc.identifier.citationScientia Horticulturae, v.137, p. 125-130en
dc.identifier.issn0304-4238en
dc.identifier.urihttps://hdl.handle.net/1959.11/10434-
dc.description.abstractMacadamia, a subtropical evergreen tree, flowers profusely but sheds more than 98% of flowers and fruitlets within 10 weeks of anthesis. This premature fruit abscission is accentuated when trees are hedged in spring, as is commonly practiced in Australian orchards. The aim of this study was to assess the effect of the ethylene inhibitor aminoethoxyvinylglycine (AVG) on fruit abscission in macadamia and if it could be used to mitigate the effect of pruning on abscission. Racemes on '849' trees that had been planted in 2002 were sprayed either pre or post anthesis with AVG at concentrations of 0, 30, 60 or 90 ppm in 2007, and 0, 200, 400 or 600 ppm in 2008. Whole trees that had been tip pruned at anthesis to simulate hedging, were sprayed twice (pre and post anthesis) with AVG at concentrations of 60 ppm in 2007 (10-year-old 'A4' trees) and 400 ppm in 2008 (6-year-old '849' trees). Post anthesis applications to racemes increased set only slightly and the effects of low concentrations in 2007 were similar to those of high concentrations in 2008. Pre anthesis application had a similar effect to post anthesis application in 2007 but decreased initial fruit set relative to post anthesis application and the control in 2008. The increase in fruit abscission associated with pruning was not prevented by AVG application; and whole tree sprays did not increase yield on either pruned or unpruned trees. Overall the response of fruit set in macadamia to AVG in this study was poor even at high rates and with two applications. This may indicate an alternative to ethylene as the primary regulator of abscission of young macadamia fruit.en
dc.languageenen
dc.publisherElsevier BVen
dc.relation.ispartofScientia Horticulturaeen
dc.titleEffects of the ethylene inhibitor aminoethoxyvinylglycine (AVG) on fruit abscission and yield on pruned and unpruned macadamia treesen
dc.typeJournal Articleen
dc.identifier.doi10.1016/j.scienta.2012.01.028en
dc.subject.keywordsHorticultural Crop Growth and Developmenten
local.contributor.firstnameLisa Mareeen
local.contributor.firstnameDen
local.contributor.firstnameMargareten
local.contributor.firstnamePaulen
local.contributor.firstnameTrevor Daviden
local.subject.for2008070601 Horticultural Crop Growth and Developmenten
local.subject.seo2008820206 Macadamiasen
local.profile.schoolSchool of Science and Technologyen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emaillmcfadye@une.edu.auen
local.profile.emailmsedgle2@une.edu.auen
local.profile.emailpkristi2@une.edu.auen
local.profile.emailtolesen@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20120607-103218en
local.publisher.placeNetherlandsen
local.format.startpage125en
local.format.endpage130en
local.identifier.scopusid84857129002en
local.peerreviewedYesen
local.identifier.volume137en
local.contributor.lastnameMcFadyenen
local.contributor.lastnameRobertsonen
local.contributor.lastnameSedgleyen
local.contributor.lastnameKristiansenen
local.contributor.lastnameOlesenen
dc.identifier.staffune-id:lmcfadyeen
dc.identifier.staffune-id:msedgle2en
dc.identifier.staffune-id:pkristi2en
dc.identifier.staffune-id:tolesenen
local.profile.orcid0000-0003-2116-0663en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:10629en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleEffects of the ethylene inhibitor aminoethoxyvinylglycine (AVG) on fruit abscission and yield on pruned and unpruned macadamia treesen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorMcFadyen, Lisa Mareeen
local.search.authorRobertson, Den
local.search.authorSedgley, Margareten
local.search.authorKristiansen, Paulen
local.search.authorOlesen, Trevor Daviden
local.uneassociationUnknownen
local.identifier.wosid000302521500018en
local.year.published2012en
local.subject.for2020300802 Horticultural crop growth and developmenten
local.subject.seo2020260507 Macadamiasen
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