Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/8226
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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.accessioned2011-07-28T10:40:00Z-
dc.date.issued2011-
dc.identifier.citationAnnals of Botany, 107(6), p. 993-1001en
dc.identifier.issn1095-8290en
dc.identifier.issn0305-7364en
dc.identifier.urihttps://hdl.handle.net/1959.11/8226-
dc.description.abstractBackground and Aims: There is good evidence for deciduous trees that competition for carbohydrates from shoot growth accentuates early fruit abscission and reduces yield but the effect for evergreen trees is not well defined. Here, whole-tree tip-pruning at anthesis is used to examine the effect of post-pruning shoot development on fruit abscission in the evergreen subtropical tree macadamia ('Macadamia integrifolia', 'M. integrifolia' x 'tetraphylla'). Partial-tree tip-pruning is also used to test the localization of the effect. Methods: In the first experiment (2005/2006), all branches on trees were tip-pruned at anthesis, some trees were allowed to re-shoot (R treatment) and shoots were removed from others (NR treatment). Fruit set and stem total non-structural carbohydrates (TNSC) over time, and yield were measured. In the second experiment (2006/2007), upper branches of trees were tip-pruned at anthesis, some trees were allowed to re-shoot (R) and shoots were removed from others (NR). Fruit set and yield were measured separately for upper (pruned) and lower (unpruned) branches. Key Results: In the first experiment, R trees set far fewer fruit and had lower yield than NR trees. TNSC fell and rose in all treatments but the decline in R trees occurred earlier than in NR trees and coincided with early shoot growth and the increase in fruit abscission relative to the other treatments. In the second experiment, fruit abscission on upper branches of R trees increased relative to the other treatments but there was little difference in fruit abscission between treatments on lower branches. Conclusions: This study is the first to demonstrate an increase in fruit abscission in an evergreen tree in response to pruning. The effect appeared to be related to competition for carbohydrates between post-pruning shoot growth and fruit development and was local, with shoot growth on pruned branches having no effect on fruit abscission on unpruned branches.en
dc.languageenen
dc.publisherOxford University Pressen
dc.relation.ispartofAnnals of Botanyen
dc.titlePost-pruning shoot growth increases fruit abscission and reduces stem carbohydrates and yield in macadamiaen
dc.typeJournal Articleen
dc.identifier.doi10.1093/aob/mcr026en
dcterms.accessRightsGolden
dc.subject.keywordsPlant Developmental and Reproductive Biologyen
local.contributor.firstnameLisa Mareeen
local.contributor.firstnameDen
local.contributor.firstnameMargareten
local.contributor.firstnamePaulen
local.contributor.firstnameTrevor Daviden
local.subject.for2008060703 Plant Developmental and Reproductive Biologyen
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.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-20110713-12195en
local.publisher.placeUnited Kingdomen
local.format.startpage993en
local.format.endpage1001en
local.identifier.scopusid79955438346en
local.peerreviewedYesen
local.identifier.volume107en
local.identifier.issue6en
local.access.fulltextYesen
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:8401en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitlePost-pruning shoot growth increases fruit abscission and reduces stem carbohydrates and yield in macadamiaen
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.wosid000289838700009en
local.year.published2011en
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