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Effect of water stress in the flowering induction of olive trees (Olea europaea L.)

AuthorsCorell González, M.; Martín-Palomo, M. J.; Girón Moreno, Ignacio F. ; Pérez-López, D.; Centeno, Ana; Torrecillas Melendreras, Arturo ; Valverde, Federico ; Moriana, Alfonso
Issue Date18-Oct-2016
PublisherUniversidad de Alicante
CitationXIII Reunión de la Red Nacional de Microorganismos Extremófilos. Libro de resumenes 83-86(2016)
AbstractOlive trees are a traditional fruit in the Mediterranean basin. However, from the 90’s, there has been a great increase in the surface along the world, in traditional and new zones. In some of these new locations such as south of USA, Peru or north of Chile, problems with flowering have been reported. In some fruit trees, such as citrus, drought periods produced a flowering return. Water stress induced for chilling conditions has been reported in different olive cultivars. The aim of this work is to study if water stress could replace the chilling needs of olive trees for flowering. One experiment was performed in growth chamber (24/20ºC, Short day conditions) with 4 years old potted olive trees cv Arbequina which had flowered the previous year. Treatments were: full irrigated, water stress and treatment with AP10 (commercial flowering product). Significant differences in the water relations of full irrigated and AP10 vs water stress trees were found, with a clear reduction in water potential and leaf conductance. Full recovery in around 3-7 days was obtained in stressed trees. Flowering was inhibited in the growth chamber but was promoted when the pots where moved to outdoor conditions. Full irrigated trees presented significant higher number of flower - Gabaldón, C (2016). Response of maize and olive to climate change under semi-arid conditions of southern Spain. PhD Thesis. Universidad Politécnica de Madrid (UPM). Girón et al 2015 - Girón, I.F. et al. (2015). Feasibility of trunk diameter fluctuations in the scheduling of regulated deficit irrigation for table olive trees without references trees. Agricultural Water Management 161:114-126 - Pavel, E.W. and Fereres, E. (1998): Low soil tempeartures induce water deficits in olive (Olea europaea) trees. Physiol. Plant. 104, 525-532. - Rubio, G. (2009). Crecimiento y latencia de yemas reproductoras de olivo (Olea europea L.). PhD Thesis. Universidad de Córdoba.
Description4 páginas.-- 3 figuras.-- 4 referencias.-- Comunicación presentada en el XIII Reunión de la Red Nacional de Microorganismos Extremófilos 83-86 21-22 Octubre (2016) Alicante
Identifiersisbn: 978-84-8081-525-3
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