English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/146043
COMPARTIR / IMPACTO:
Estadísticas
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
Exportar a otros formatos:
Título

Changes in growth rate, root morphology and water use efficiency of potted Callistemon citrinus plants in response to different levels of water deficit

AutorÁlvarez Martín, Sara ; Sánchez-Blanco, María Jesús
Palabras claveWater relations
Root system
Ornamental potted plant
Deficit irrigation
Evapotranspiration
Gas exchange
Fecha de publicación7-jun-2013
EditorElsevier
CitaciónScientia Horticulturae 156: 54-62 (2013)
ResumenCallistemon is widely used as a flowering shrub in gardening and landscaping in the Mediterranean area. However, prolonged or severe water stress may alter its physiological and morphological behaviour. Callistemon citrinus plants were grown in nursery conditions and subjected to three irrigation treatments: a control (watered to container capacity) and two water deficit treatments of 50 and 25% of the amount of water supplied in the control treatment (moderate and severe deficit irrigation, respectively). After 53 weeks, the moderate deficit irrigation plants showed a lower relative growth rate but increased root/shoot ratio, improved the root system and increased water use efficiency, while flowering and leaf colour were unaffected. However, severe deficit irrigation reduced flowering and affected leaf colour. Both deficit irrigation treatments reduced stomatal conductance, suggesting an efficient and adaptive stomatal control in this species. These reductions were marked after longer periods in plants submitted to severe deficit irrigation, which decreased photosynthesis and could delay plant recovery and cause permanent damage. Differences between stem and leaf water potential values have seen to be a good indicator of instantaneous shoot transpiration. Water consumption was influenced by the active periods of growth and inflorescence formation. It is concluded that moderate deficit irrigation can be used successfully in C. citrinus plant production to reduce water consumption while maintaining good overall quality. © 2013 Elsevier B.V.
Versión del editorhttps://doi.org/10.1016/j.scienta.2013.03.024
URIhttp://hdl.handle.net/10261/146043
DOI10.1016/j.scienta.2013.03.024
Identificadoresissn: 0304-4238
Aparece en las colecciones: (CEBAS) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Changes in growth rate, root morphology.pdf833,93 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


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