English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/89685
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Revisiting the fate of buds: Size and position drive bud mortality and bursting in two coexisting Mediterranean Quercus species with contrasting leaf habit

AuthorsAlla, A. Q. ; Camarero, Jesús Julio ; Palacio, Sara ; Montserrat-Martí, Gabriel
KeywordsBud position
Bud size
Budburst
Quercus ilex subsp. ballota
Quercus faginea
Bud demography
Issue Date2013
PublisherSpringer
CitationTrees - Structure and Function 27(5): 1375- 1386 (2013)
AbstractUnderstanding the relationships between bud size and position and bud fate through time is crucial for identifying and subsequently modeling the mechanisms underlying tree architecture. However, there is a lack of information on how bud size drives crown architectural patterns in coexisting tree species. We studied bud demography in two coexisting Mediterranean oak species with contrasting leaf habit (Quercus ilex, evergreen; Q. faginea, deciduous). The main objective was to analyse the effect of bud size on the fate of buds with different positions along the shoot (apical, leaf axillary and scale-cataphyll axillary buds). The number, length and position of all buds and stems were recorded in marked branches during 4 years. Study species presented different strategies in bud production and lifespan. The evergreen species showed greater mortality rate than the deciduous one, which produced larger buds. Bud size and position were highly related since apical buds where longer than axillary ones and bud length declined basipetally along the stem. Apical buds had also higher chances of bursting than axillary ones. Within positions, longer buds presented a higher probability of bursting than shorter ones, although no absolute size threshold was found below which bud bursting was impaired. In Q. ilex, four-year-old buds were still viable and able to burst, whereas in Q. faginea practically all buds burst in their first year or died soon after. Such different bud longevities may indicate contrasting strategies in primary growth between both species. Q. ilex is able to accumulate viable buds for several ages, whereas Q. faginea seems to rely on the production of large current-year buds with high bursting probability under favourable environmental conditions. © 2013 Springer-Verlag Berlin Heidelberg.
Publisher version (URL)http://dx.doi.org/10.1007/s00468-013-0885-x
URIhttp://hdl.handle.net/10261/89685
DOIhttp://dx.doi.org/10.1007/s00468-013-0885-x
Identifiersdoi: 10.1007/s00468-013-0885-x
issn: 0931-1890
e-issn: 1432-2285
Appears in Collections:(IPE) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.