An experiment was conducted to investigate the water relations of potted young olive trees (Olea europaea L.) cultivar ‘Biancolilla’, ‘Giarraffa’ and ‘Nocellara del Belice’ during water stress and after relief from stress. The aim was to highlight the different responses of the three cultivars and obtain a decision-making aid for planning an efficient watering schedule for potted plants grown in nurseries. Leaf water potential (Ψ), relative water content (RWC) and conductance to water vapour (gL) were measured in three-year-old plants. All three olive cultivars were able to survive the severe stress imposed by withholding water for three weeks, but gas exchange was strongly impaired and recovery after rewatering was slow, resulting in a potential reduction of growth. The cultivars showed different responses to drought: ‘Giarraffa’ was the most sensitive, showing the earliest reduction in Ψ and the lowest recovery in gL. ‘Biancolilla’ showed higher gL, leaf hydration and Ψ under water deficit and appeared to be best adapted to drought. The behaviour of ‘Nocellara del Belice’ was similar to that of ‘Biancolilla’, and a particularly good recovery of gL after rewatering occurred.

ODDO E, VIRGILIO F, CALDERON AA, FERRER MA, GRISAFI F (2005). Effects of water stress on Sicilian olive cultivars.. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? Interdrought - 2nd International Approaches to Sustain and Improve Plant Production Under Droug.

Effects of water stress on Sicilian olive cultivars.

ODDO, Elisabetta;VIRGILIO, Francesca;GRISAFI, Francesca
2005-01-01

Abstract

An experiment was conducted to investigate the water relations of potted young olive trees (Olea europaea L.) cultivar ‘Biancolilla’, ‘Giarraffa’ and ‘Nocellara del Belice’ during water stress and after relief from stress. The aim was to highlight the different responses of the three cultivars and obtain a decision-making aid for planning an efficient watering schedule for potted plants grown in nurseries. Leaf water potential (Ψ), relative water content (RWC) and conductance to water vapour (gL) were measured in three-year-old plants. All three olive cultivars were able to survive the severe stress imposed by withholding water for three weeks, but gas exchange was strongly impaired and recovery after rewatering was slow, resulting in a potential reduction of growth. The cultivars showed different responses to drought: ‘Giarraffa’ was the most sensitive, showing the earliest reduction in Ψ and the lowest recovery in gL. ‘Biancolilla’ showed higher gL, leaf hydration and Ψ under water deficit and appeared to be best adapted to drought. The behaviour of ‘Nocellara del Belice’ was similar to that of ‘Biancolilla’, and a particularly good recovery of gL after rewatering occurred.
Interdrought - 2nd International Approaches to Sustain and Improve Plant Production Under Droug
September 24 to 28
2005
ODDO E, VIRGILIO F, CALDERON AA, FERRER MA, GRISAFI F (2005). Effects of water stress on Sicilian olive cultivars.. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? Interdrought - 2nd International Approaches to Sustain and Improve Plant Production Under Droug.
Proceedings (atti dei congressi)
ODDO E; VIRGILIO F; CALDERON AA; FERRER MA; GRISAFI F
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/16980
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