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Limitations and usefulness of maximum daily shrinkage (MDS) and trunk growth rate (TGR) indicators in the irrigation scheduling of table olive trees

Opened Access Limitations and usefulness of maximum daily shrinkage (MDS) and trunk growth rate (TGR) indicators in the irrigation scheduling of table olive trees

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Autor: Girón, I.F.
Corell González, Mireia
Torrecillas, F.
Moreno, F.
Moriana Elvira, Alfonso
Martín Palomo, María José
Departamento: Universidad de Sevilla. Departamento de Ciencias Agroforestales
Fecha: 2016
Publicado en: Agricultural Water Management, 164,(1) 38–45
Tipo de documento: Artículo
Resumen: Maximum daily trunk shrinkage (MDS) is the most popular indicator derived from trunk diameter fluctuations in most fruit trees and has been reported to be one of the earliest signs in the detection of water stress. However, in some species such as olive trees (Olea europaea L.), MDS does not usually change in water stress conditions and trunk growth rate (TGR) has been suggested as better indicator. Most of this lack of sensitivity to drought conditions has been related to the relationship between the MDS and the water potential. This curvilinear relationship produces an uncertain zone were great variations of water potential do not imply any changes of MDS. The MDS signal, the ratio between measured MDS and estimated MDS with full irrigation, has been thought to be a better indicator than MDS, as it reduces the effect of the environment.. On the other hand, though literature results suggest an effect of environment in TGR values, there are not clear relationship between this indicato...
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Tamaño: 620.8Kb
Formato: PDF

URI: http://hdl.handle.net/11441/32271

DOI: http://dx.doi.org/doi:10.1016/j.agwat.2015.09.014

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