PRODUCTION AND PERIODICITY CHARACTERISTICS OF SOME OLIVE CULTIVARS (OLEA EUROPAEA L) IN VLORA ENVIRONMENTAL CONDITIONS

44 olive cultivars were studied for their morphological and technological characteristics in Vlora area conditions, during a 12-year period (1993-2005). The main indices studied were the cultivar adaptability in the growing area and regularity of its initial production. Olive cultivars have shown significant changes with regard to their efflorescence and first production. Cultivars like, Manzanilla, Pendolino, Koroneiki, Amigdanolia started their first production during the second year whereas other cultivars like Unafka, Boçi, Kallmet, KME, KMB, Kaninjot, B. TIR, Kushan, H. Himara, Nisiot, Marks started their first production from the 5th to 7th year. Regarding the CP analysis, cultivars were classified according to their diversity level below and above the threshold 0.3. The values of coefficient of periodicity (CP) analyzing the cluster average linkage method, showed three groups with similarities: (i) 16% of cultivars with alternation coefficient 0.09 to 0.30; (ii) 32% of cultivars with alternation coefficient 0.30-0.45; (iii) 52% of cultivars with alternation coefficient over 0.45. This means that production of the third group was without uniformity