Effect of Deficit Irrigation Regimes on Yield and Fruit Quality of Olive Trees (cv. Memecik) on the Aegean Coast of Turkey
2017
Kaya, Ü | Öztürk Güngör, F. | Çamoğlu, G. | Akkuzu, E. | Aşik, Ş | Köseoğlu, O.
In this study, six different irrigation treatments were applied to an olive orchard using the drip irrigation method. Five of these were arranged according to 25% (S₀.₂₅), 50% (S₀.₅₀), 75% (S₀.₇₅), 100% (S₁.₀₀) and 125% (S₁.₂₅) of the evaporation in 5 days of a class ‘A’ evaporation pan, and one control (SC) was arranged so as to bring the reducing moisture at a soil depth of 0–90 cm to field capacity. Yield values were not affected by the irrigation treatment (p > 0.05). In contrast, 100‐fruit weight, pulp ratio, hardness moisture, oil, reducing sugar content and bitterness were affected by irrigation (p < 0.05). Generally, an increase in the amount of irrigation water given in the study was accompanied by a fall in ripeness index values, a rise in moisture content, and a reduction in the oil content of fruit. The highest content of reducing sugar was obtained from S₀.₂₅, generally being lower with increase in the water applied. The findings show that application of 25% of the evaporation of a class ‘A’ evaporation pan (treatment S₀.₂₅) can be recommended for cv. Memecik. Application of this recommendation can achieve a 72% saving in water and make a significant contribution to the conservation of limited water resources. Copyright © 2017 John Wiley & Sons, Ltd.
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