PubAg

Main content area

Search

4  Search Results

1 - 4 of 4
Number of results to display per page

Search Results

1. Loss of hydraulic functioning at leaf, stem and root level and its role in the stomatal behaviour during drought in olive trees

Author:
Torres-Ruiz, J.M.,   et al.   ; Díaz-Espejo, A.; Perez-Martin, A.; Hernandez-Santana, V.;     Show all 4 Authors
Source:
Acta horticulturae 2013 no.991 pp. 333-339
ISSN:
0567-7572
Subject:
drought; irrigation; leaf water potential; leaves; olives; plant available water; roots; stems; stomatal conductance; stomatal movement; trees; water stress; xylem
Abstract:
... Knowing the mechanisms and factors related with the control of the stomatal behaviour by plants is crucial for understanding the variation of transpiration with time or among plants under different conditions. The loss of hydraulic functioning in some parts of the plants has been reported to have an important influence in the plant stomatal closure and, therefore, in the plant transpiration. Both ...

2. 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 ...

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. Sap flow response to olive water stress: a comparative study with trunk diameter variations and leaf turgor pressure

Author:
Torres-Ruiz, J.M.,   et al.   ; Fernández, J.E.; Cuevas, M.V.; Rodriguez-Dominguez, C.M.; Perez-Martin, A.; Elsayed-Farag, S.; Diaz-Espejo, A.; Martín-Palomo, M.J.;     Show all 8 Authors
Source:
Acta horticulturae 2012 no.951 pp. 101-110
ISSN:
0567-7572
Subject:
deficit irrigation; irrigation management; leaves; olives; orchards; plant density; sap flow; soil; trees; turgor; water holding capacity; water potential; water stress
Abstract:
... The aim of this work was to evaluate the potential of used sap flow (SF), trunk diameter variation (TDV) and leaf turgor (LT) sensors for assessing water stress in a 'Arbequina' hedgerow olive orchard with 1667 trees ha-1. Measurements were made in control trees irrigated to replace 100% of the crop water needs, and in trees under two regulated deficit irrigation strategies, 60RDI and 30RDI, in wh ...
DOI:
10.17660/ActaHortic.2012.951.11