Show simple item record

dc.contributor.authorMahouachi, Jalel
dc.contributor.authorIglesias, Domingo J.
dc.contributor.authorAgusti, Manuel
dc.contributor.authorTalón, Manuel
dc.date.accessioned2017-06-01T10:12:33Z
dc.date.available2017-06-01T10:12:33Z
dc.date.issued2009
dc.identifier.citationMahouachi, Jalel, Iglesias, D.J., Agusti, M., Talón, M. (2009). Delay of early fruitlet abscission by branch girdling in citrus coincides with previous increases in carbohydrate and gibberellin concentrations. Plant Growth Regulation, 58(1), 15-23.
dc.identifier.issn0167-6903
dc.identifier.urihttp://hdl.handle.net/20.500.11939/5550
dc.description.abstractCurrent evidence in citrus indicates that gibberellins (GAs) are main determinants of early fruit set while subsequent growth of developing fruits is mostly dependent upon carbohydrate availability. In this work, branch girdling performed at anthesis in Satsuma mandarin (Citrus unshiu (Mak.) Marc.) cv. Okitsu transitorily reduced early abscission rates (12-32 days after anthesis, DAA) delaying initially the process of natural fruitlet drop. The effects of girdling on growth, gibberellin (GA) and carbohydrate concentrations in developing ovaries and fruitlets were assessed during this initial growth stage (0-69 DAA). In girdled branches, abscission rate reduction was preceded by elevated concentrations of carbohydrate and GA in developing ovaries and fruitlets. Girdling at anthesis stimulated higher hexose (21 DAA) and starch (6-20 DAA) concentrations and also higher GA(1) (6 DAA), GA(19) (13-20 DAA) and GA(20) (6-20 DAA). The results established a relationship between the reduction of early abscission rates and higher concentrations of carbohydrates and GAs induced by girdling in developing fruitlets. These findings revealed that girdling certainly increased GA concentration and strongly suggested that its effect on early fruitlet abscission delay is likely mediated by both GA and carbohydrates.
dc.language.isoen
dc.titleDelay of early fruitlet abscission by branch girdling in citrus coincides with previous increases in carbohydrate and gibberellin concentrations
dc.typearticle
dc.date.issuedFreeFormMAY 2009
dc.identifier.doi10.1007/s10725-008-9348-6
dc.journal.issueNumber1
dc.journal.titlePlant Growth Regulation
dc.journal.volumeNumber58
dc.page.final23
dc.page.initial15
dc.rights.accessRightsopenAccess
dc.source.typeImpreso


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record