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dc.contributor.author
Pierantozzi, Pierluigi
dc.contributor.author
Torres, Myriam Mariela
dc.contributor.author
Bodoira, Romina Mariana
dc.contributor.author
Maestri, Damian
dc.date.available
2017-03-22T18:33:02Z
dc.date.issued
2013-05-10
dc.identifier.citation
Pierantozzi, Pierluigi; Torres, Myriam Mariela; Bodoira, Romina Mariana; Maestri, Damian; Water relations, biochemical - physiological and yield responses ofolive trees (Olea europaea L. cvs. Arbequina and Manzanilla) underdrought stress during the pre-flowering and flowering period; Elsevier Science; Agricultural Water Management; 125; 10-5-2013; 13-25
dc.identifier.issn
0378-3774
dc.identifier.uri
http://hdl.handle.net/11336/14189
dc.description.abstract
In arid and semiarid regions from Argentina, where the main olive production areas are located, evapotranspiration is high and rainfall is minimal during winter and spring months, as compared with the Mediterranean region where winter rainfall precludes the need of irrigation in such period. The aim of the work was to study water relations, biochemical–physiological and yield responses of olive trees (Olea europaea L., Arbequina and Manzanilla cultivars) under different drought stress levels applied during the pre-flowering–flowering period. Increasing levels of water deficit affected plant water relations as measured by pronounced drops of stem water potentials (near −4.0 MPa) in treatments with severe water deprivation at the end of the flowering period. Deficit irrigation was associated with some leaf-level biochemical-physiological responses (accumulation of osmotically active substances, increased concentration of high molecular weight hydrocarbons and cuticle thickening), which can be interpreted as adaptation mechanisms of olive to water deficit. Water stress was also associated with increased lipid peroxidation and decreased levels of photosynthetic pigments, stomatal conductance and photosynthetic rate. During the first crop year analyzed, a significant decrease in fruit set and fruit yield was observed in treatments under water deprivation. Also, all treatments evaluated showed strong drops in fruiting and yield parameters during the second crop year suggesting a marked bearing pattern for both olive cultivars. From a practical standpoint, little irrigation (50% ETc) may be sufficient to maintain adequate plant water potentials for the coldest winter months, but high (75% ETc) or full (100% ETc) irrigation rates could be needed by mid-August (approximately 2 months before flowering) to avoid detrimental effects of water stress on biochemical–physiological and yield parameters of olive trees cultivated in areas with dry winter-spring season.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Leaf-Level Responses
dc.subject
Olive
dc.subject
Pre-Flowering - Flowering Period
dc.subject
Water Stress
dc.subject
Yield Responsesyield Responses
dc.subject.classification
Agronomía, reproducción y protección de plantas
dc.subject.classification
Agricultura, Silvicultura y Pesca
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Water relations, biochemical - physiological and yield responses ofolive trees (Olea europaea L. cvs. Arbequina and Manzanilla) underdrought stress during the pre-flowering and flowering period
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-03-03T18:23:59Z
dc.journal.volume
125
dc.journal.pagination
13-25
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Pierantozzi, Pierluigi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
dc.description.fil
Fil: Torres, Myriam Mariela. Instituto Nacional de Tecnologia Agropecuaria. Estación Experimental San Juan; Argentina
dc.description.fil
Fil: Bodoira, Romina Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
dc.description.fil
Fil: Maestri, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
dc.journal.title
Agricultural Water Management
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.agwat.2013.04.003
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0378377413000942
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