English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/94915
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Water stress effects on growth, development and yield of opium poppy (Papaver somniferum L.)

AutorMahdavi-Damghani, Abdolmajid; Kamkar, Behnam; Al-Alahmad, Majid Jami; Testi, Luca ; Muñoz Ledesma, Francisco Javier; Villalobos, Francisco J.
Palabras claveWater use efficiency
Photoperiod
Evapotranspiration
Deficit irrigation
Fecha de publicaciónoct-2010
EditorElsevier
CitaciónAgricultural Water Management 97(10): 1582-1590 (2010)
ResumenThe effects of pre-anthesis water deficit and cycle length were examined in Papaver somniferum L., cultivated for alkaloid production, in two locations in southern Spain. The vegetative period was shortened by extending the photoperiod through supplemental lighting in the field, while water deficit in pre-anthesis was induced by avoiding irrigations and installing rain shelters. The treatments were: IN (irrigated-normal photoperiod), IL (irrigated-hastened flowering), DN (water deficit in pre-anthesis-normal photoperiod) and DL (water deficit in pre-anthesis and hastened flowering). The artificial photoperiod hastened the flowering by 15 and 21 days, for irrigated and deficit treatments respectively. Seasonal evapotranspiration (ET) ranged from 398 (DN) to 505mm (IN). There was evidence of root water uptake deeper than 1.5m. Stomatal conductance was reduced (16%) during water stress, and did not recover in post-anthesis after resuming irrigation. Head yields (capsule+seeds+7cm stem) ranged between 3.8 and 4.3tha-1; water deficit and short vegetative period both reduced the biomass accumulated, although the effect on yields in these treatments was counterbalanced by a higher harvest index. Early flowering had a detrimental effect on alkaloid concentration in the capsule. Alkaloids yield ranged between 27 and 37kgha-1. Water use efficiency (WUE) ranged between 0.78 and 0.96kgm-3 ET for yield and between 63.4 and 73.7gm-3 ET for alkaloids. Water stress increased slightly the Water Use Efficiency. A shorter vegetative phase had no effect on WUE for biomass or yield, but decreased the WUE for alkaloids production. © 2010 Elsevier B.V.
URIhttp://hdl.handle.net/10261/94915
DOI10.1016/j.agwat.2010.05.011
Identificadoresdoi: 10.1016/j.agwat.2010.05.011
issn: 0378-3774
Aparece en las colecciones: (IAS) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
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.