• Castellano
  • English
  • Valenciá
Página de inicio de ReDivia
Página de la Generalitat ValenciáPágina de IVIA
View Item 
  •   ReDivia Home
  • 1.- Investigación
  • 1.1.- Artículos de revista académica
  • View Item
  •   ReDivia Home
  • 1.- Investigación
  • 1.1.- Artículos de revista académica
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Delay of early fruitlet abscission by branch girdling in citrus coincides with previous increases in carbohydrate and gibberellin concentrations

Export
untranslatedRefworks
URI
http://hdl.handle.net/20.500.11939/5550
DOI
10.1007/s10725-008-9348-6
Derechos de acceso
openAccess
Metadata
Show full item record
Author
Mahouachi, Jalel; Iglesias, Domingo J.; Agustí, Manuel; Talón, Manuel
Date
2009
Cita bibliográfica
Mahouachi, 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.
Abstract
Current 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.
Collections
  • 1.1.- Artículos de revista académica

Browse

All of ReDiviaCommunities & CollectionsBy Issue DateAuthorsTitlesSubjetcsCategoriesIVIA CentersThis CollectionBy Issue DateAuthorsTitlesSubjetcsCategoriesIVIA Centers

My Account

LoginRegister

Statistics

View Usage Statistics

Of interest

IVIA Open Access PolicyIntellectual property and copyrightAutoarchiveFrequently Asked Questions

Indexers

Recolectauntranslated

El contenido de este sitio está bajo una licencia Creative Commons - No comercial - Sin Obra Derivada (by-nc-nd), salvo que se indique lo contrario.