Published in Scientific Papers. Series A. Agronomy, Vol. LX
Written by Hakan CETINKAYA, Muhittin KULAK, Ali OZKAN, Mehmet Ali CELI , Nazım SEKEROGLU
Olive tree is important oil sources for Mediterranean countries. For their excellent nutritional quality, olives and olive oil have always been essential component of the diet in many Mediterranean civilizations. Geographical factors such as slope, aspect, lithology, geology and elevation influence plant growth, development and subsequently main primary and secondary metabolite production, secretion and accumulation. Because of geographical factors and cultivated olive cultivars which indicate high genetic diversity in Turkey influence the fatty acid composition. This may result in a standardization problem in terms of olive production and their fatty acid composition. Geographical Information System (GIS) has been increasingly performed to analyze the influence of location on the growth and distribution of plants. In the present work changes in olive oil content and its fatty acid composition were discussed with the extent of varying geological and environmental factors. Herein, there was a weak relation between slope and major fatty acids except linoleic acid. Among the tested parameters, oil yield was more pronounced with varying slope percentage. There was a higher correlation with respect to the elevation than slope effect concerned with fatty acid compositions. With respect to the aspect and lithology, higher oil yields and fatty acid compositions were obtained in the south and southeast aspect and basaltic soils
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