English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/18878
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Breaking seed dormancy in almond (Prunus dulcis (Mill.) D.A. Webb)

AutorGarcía-Gusano, Marta ; Martínez-Gómez, Pedro ; Dicenta, Federico
Palabras claveAlmond
Prunus dulcis
Germination
Seed dormancy
Endocarp
Stratification requirements
Heat requirements
Fecha de publicación27-feb-2004
EditorElsevier
CitaciónScientia Horticulturae 99(3-4): 363-370 (2004)
ResumenSeed dormancy affects germination and subsequent seedling growth in many plant species. In this work the effect of temperature (cold and heat treatments), flowering time of genotypes, and hardness of endocarp on the break of seed dormancy in four almond cultivars, including a broad range of flowering dates, was studied. Mature seeds, with and without endocarp, were stratified at 7 °C for 1–10 weeks, followed by 5 weeks at 22 °C. The number of germinated seeds were recorded weekly for each cultivar, and cold and heat treatments. Despite the great variability observed within cultivars, a relationship between chilling requirements of cultivars for flowering and stratification requirements of seeds for germination was observed. With endocarp, stratification time required to overcome seed dormancy ranged between 6 (early flowering cultivars Desmayo Largueta and Ramillete) and 8 weeks (late-flowering cultivars Mono and Wawona) on average. Elimination of the endocarp reduced the period of stratification needed for germination in hard-shelled cultivars by 3 weeks. This effect was less important in soft-shelled almonds. No important differences between cultivars were observed for heat requirements. Two weeks at 22 °C was enough to reach the higher germination percentage after each cold treatment.
Descripción8 pages, 4 tables.-- Available Online 17 Sep. 2003.
Versión del editorhttp://dx.doi.org/10.1016/j.scienta.2003.07.001
URIhttp://hdl.handle.net/10261/18878
DOI10.1016/j.scienta.2003.07.001
ISSN0304-4238
Aparece en las colecciones: (CEBAS) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.