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Influence of the soil water content and distribution on both the hydraulic and transpiration performance of 'Manzanilla' olive trees

Opened Access Influence of the soil water content and distribution on both the hydraulic and transpiration performance of 'Manzanilla' olive trees
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Autor: Fernández Luque
Torres Ruiz, José Manuel
Muriel Fernández, José Luis
Romero Vicente, Rafael
Martín Palomo, María José
Morales Sillero, Ana María
Cires, A. de
Rubio Casal, A. E.
Departamento: Universidad de Sevilla. Departamento de Ciencias Agroforestales
Fecha: 2011-03
Publicado en: Acta Horticulturae 889: 323-330
ISBN/ISSN:
Tipo de documento: Ponencia
Resumen: This work was made with mature 'Manzanilla' olive trees in an orchard of a semi-arid area in southern Spain. Three water treatments were considered: Rainfed, in which the trees had rainfall as the only source of water supply; FAO, in which the trees were under localized irrigation to replace the crop water demand, with some roots left in drying soil; Pond, in which the whole rootzones of the trees were maintained under non-limiting soil water conditions for the whole dry season. Our aim was to obtain information on the mechanisms behind the reduction of transpiration (Ep) in the FAO trees, as compared to the Pond trees. Our results show a near-isohydric behaviour of the FAO trees, i.e. those trees under localized irrigation in which some roots are left in drying showed lower stomatal conductance than the Pond trees in which all roots were in wetted soil. This helped the FAO trees to maintain similar leaf water potentials than the Pond trees. In addition, the FAO trees maintained a con...
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Tamaño: 350.2Kb
Formato: PDF

URI: http://hdl.handle.net/11441/31869

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