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Title

Control of water consumption by the olive tree

AuthorsFernández Luque, José Enrique ; Moreno Lucas, Félix ; Girón Moreno, Ignacio F. ; Blázquez, O. M.
KeywordsOlea europaea
Irrigation
Stomata
Leaf water relations
Issue DateAug-1997
PublisherInternational Society for Horticultural Science
CitationActa Horticulturae 449 (1): 83-89 (1997)
AbstractMeasurements of leaf water potential (psi) and stomatal conductance to H2O (g) were made in 26-year-old Manzanillo olive trees under irrigation and dry-farming conditions. On days of high water demand, the olive trees reduced water losses by closing the stomata, so preventing excessive water stress. The analysis of g values versus photosynthetically active radiation (IPAR) and vapour pressure deficit (VPD), showed that stomata were fully opened at relatively low IPARlevels, from about 500 μmol m-2 s-1. Also, g decreased with increasing VPD, for values of up to approximately 4 kPa. After plotting the relative extractable soil water (REW) values against their counterparts of pre-dawn leaf water potential (psipd), it was observed that psipd remained constant for values of REW higher than 0.4, with a mean value of -0.46 MPa.
Description7 páginas, 5 figuras, 17 referencias.-- II International Symposium on Irrigation of Horticultural Crops, celebrado del 9-13 de septiembre 1996, en Chania, Crete, Greece.
URIhttp://hdl.handle.net/10261/86846
ISBN978-90-66058-69-9
ISSN0567-7572
Appears in Collections:(IRNAS) Artículos
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