|Author:||Al-Shayeb, R. ; Abboud, G. ; Allouna, L. ; Mjaweiz, A. J.|
|Book Group Author:||NA|
Olives play an important socio-economic role in Syria. According to 2002-2003 statistical data, the cultivated area under olive reached 517 000 ha, comprising approximately 74 million trees with a production of 726 000 t of olives and 137 000 t of olive oil, of which 30 000 t of the latter was exported. As a result, the General Commission for Scientific Agricultural Research (GCSAR) conducted research activities to study new water requirements with the aim of eventually regulating and reducing irrigation. Different water treatments were applied, as percentages of full water requirements, to study their effects on yield, oil and morphological properties of four commonly grown olive varieties in Syria. This research was conducted at Sirbaya research station, in southwest Aleppo. The station receives an average of 300 mm/year of rainfall, and total evaporation (ETo) amounts to 1862 mm/year. The total water requirement was estimated as 4370 m3 ha-1 and the amount of applied irrigation was 4161 m3 ha-1. The water was applied through 13 irrigations with a total irrigation rate of 247 m3 ha-1 and application efficiency of 89%. Yield by variety of the four cultivars, 'Jlot', 'Tamrani', 'Kayssi' and 'Sorani', were 3692, 3784, 3413 and 3100 kg ha-1 for fruits, and 581, 888, 820 and 915 kg ha-1 for oil, respectively. There were also differences between cultivars in terms of their WUE values, giving 1.15, 1.18, 1.06 and 0.96 kg m3 for fruits, and 0.18, 0.28, 0.26 and 0.28 kg ha-1 for oil, respectively. Applications of 100% and 75% of water requirements showed no significant difference in the results emerging from the different treatments, but there was a significant difference between these and the results of other treatments using less than the 75% requirement.
crop quality, crop yield, cultivars, fruits, irrigation,olive oil, olives, plant morphology, plant water relations, waterstress, water use efficiency, Syria, Olea europaea, Olea, Oleaceae,Scrophulariales, dicotyledons, angiosperms, Spermatophyta, plants,eukaryotes, West Asia, Asia, Mediterranean Region, Middle East,Developing Countries, Threshold Countries, cultivated varieties,Oleales, watering, Horticultural Crops (FF003) (New March 2000), PlantBreeding and Genetics (FF020), Plant Morphology and Structure (FF030),Plant Water Relations (FF062), Plant Production (FF100), EnvironmentalTolerance of Plants (FF900), Soil Water Management (Irrigation andDrainage) (JJ800) (Revised June 2002) [formerly Soil Water Management],Crop Produce (QQ050), Food Composition and Quality (QQ500)