Influence of Irrigation Regimes on Quality Attributes of Olive Oils from Two Varieties Growing in Lebanon

Influence of Irrigation Regimes on Quality Attributes of Olive Oils from Two Varieties Growing in Lebanon



Milad El Riachy, Amany Haber, Salwa Abou Daya, Ghina Jebbawi, Ghinwa Al Hawi, Vera Talej, Maysaa Houssein, Abdelkader El Hajj



An increasing interest on supplemental irrigation is
observed in modern olive orchards because of its effect in increasing
yield. In this study, the effect of three irrigation regimes (0, 60 and
100% ETC) on quality and chemical composition of olive oil is assessed
in Baladi and Edlbi varieties planted in Lebanon. Significant
differences (p<0.05) between varieties were observed for the majority
of studied traits. Meanwhile, the response to irrigation regimes was
strongly different between varieties. In Baladi variety, irrigation
regimes resulted in increasing fresh fruit weight together with slight
effects on oil yield, quality and composition. Only oleacein content
showed significant decrease with irrigation (50.35 mg/kg for 0% ETC,
28.25 for 60% and 34.60 for 100%). On the contrary, in Edlbi variety,
irrigation resulted in a strong decrease of total phenols (509.91 mg
GAE/kg for 0% ETC, 385.87 for 60% and 365.74 for 100%) and chlorophylls
(20.83 mg/kg for 0% ETC, 14.54 for 60% and 14.81 for 100%). Curiously,
60% ETC showed high content of the majority of individual phenols,
including higher than 0% ETC. 



10.22161/ijeab/2.2.43



http://ijeab.com/upload_document/issue_files/43%20IJEAB-APR-2017-4-Influence%20of%20Irrigation%20Regimes%20on%20Quality%20Attributes%20of%20Olive%20Oils.pdf



http://ijeab.com/submit-paper/

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