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1. Influence of the water treatment on the xylem anatomy and functionality of current year shoots of olive trees

Author:
Torres-Ruiz, J.M.,   et al.   ; Diaz-Espejo, A.; Chamorro, V.; Fernández, J.E.; Sebastiani, L.; Minnocci, A.; Infante, J.M.;     Show all 7 Authors
Source:
Acta horticulturae 2011 no.922 pp. 203-208
ISSN:
0567-7572
Subject:
Food and Agriculture Organization; electron microscopy; embolism; hydraulic conductivity; nitrogen; olives; rain; shoots; trees; water stress; water supply; water treatment; xylem; xylem water potential
Abstract:
... From May to October 2006 we applied two water treatments in an olive orchard in south Spain with 38-year-old ‘Manzanilla’ trees at 7x5 m spacing: a) rainfed, with rainfall as the only source of water supply; b) FAO, in which the trees were drip-irrigated daily from May to September, to replace the crop water needs. The aim of this work was to evaluate the influence of the water treatments on both ...

2. Use of maximum trunk diameter measurements to detect water stress in mature ‘Arbequina’ olive trees under deficit irrigation

Author:
Torres-Ruiz, J.M.,   et al.   ; Fernández, J.E.; Diaz-Espejo, A.; Montero, A.; Álvarez, R.; Jiménez, M.D.; Cuerva, J.; Cuevas, M.V.;     Show all 8 Authors
Source:
Agricultural water management 2011 v.98 no.12 pp. 1813-1821
ISSN:
0378-3774
Subject:
deficit irrigation; fruit trees; irrigation scheduling; olives; shrinkage; soil water; uncertainty; water stress
Abstract:
... Olive is one of the fruit tree species for which measurements of the trunk diameter variation (TDV) has shown a lower potential both for monitoring water stress and for scheduling irrigation. This is particularly true in the case of old, big olive trees with heavy fruit load. Fernández et al. (2011, J. Environ. Exp. Bot. 72, 330–338) observed that the daily difference for maximum trunk diameter be ...
DOI:
10.1016/j.agwat.2011.06.011

3. Physiological and genetic response of olive leaves to water stress and recovery: implications of mesophyll conductance and genetic expression of aquaporins and carbonic anhydrase

Author:
Torres-Ruiz, J.M.,   et al.   ; Perez-Martin, A.; Fernández, J.E.; Diaz-Espejo, A.; Flexas, J.; Michelazzo, C.; Sebastiani, L.;     Show all 7 Authors
Source:
Acta horticulturae 2011 no.922 pp. 99-105
ISSN:
0567-7572
Subject:
acclimation; aquaporins; carbon dioxide; carbonate dehydratase; carboxylation; drought; gas exchange; genetic techniques and protocols; hydraulic conductivity; irrigation; leaf water potential; leaves; mesophyll; olives; photosynthesis; plant growth; shoots; stomatal conductance; trees; water stress
Abstract:
... Drought is considered to be the main environmental factor limiting photosynthesis (AN) and, consequently, plant growth and yield worldwide. During photosynthesis, the pathway of CO2 from the atmosphere to the site of carboxylation in the chloroplast stroma has two main components: stomatal (gs) and mesophyll (gm) conductances. Both are finite and dynamic, responding to many abiotic factors, theref ...

4. Online-monitoring of tree water stress in a hedgerow olive orchard using the leaf patch clamp pressure probe

Author:
Torres-Ruiz, J.M.,   et al.   ; Fernández, J.E.; Rodriguez-Dominguez, C.M.; Perez-Martin, A.; Zimmermann, U.; Rüger, S.; Martín-Palomo, M.J.; Cuevas, M.V.; Sann, C.; Ehrenberger, W.; Diaz-Espejo, A.;     Show all 11 Authors
Source:
Agricultural water management 2011 v.100 no.1 pp. 25-35
ISSN:
0378-3774
Subject:
air; deficit irrigation; fruit trees; irrigation rates; leaves; olives; orchards; water potential; water stress
Abstract:
... The need for sophisticated irrigation strategies in fruit tree orchards has led to an increasing interest in reliable and robust sensor technology that allows automatic and continuous recording of the water stress of trees under field conditions. In this work we have evaluated the potential of the leaf patch clamp pressure (LPCP) probe for monitoring water stress in a 4-year-old ‘Arbequina’ hedger ...
DOI:
10.1016/j.agwat.2011.08.015