1 THE INFLUENCE OF IRRIGATION IN OLIVE AND GRAPE CULTURE. EDLIRA KUKALI 1 , EFIGJENI KONGJIKA 2 , MAJLINDA KASMI 1 . 1 Horticulture Department, Faculty of Agriculture and Environment, Agricultural University of Tirana edlirakukali@yahoo.com, linda_g1987@live.com 2 Albanian Academy of Science kongjikaef@yahoo.com Abstract The study on irrigation and biological factors realized in the autochthonous olive & grapevine cultivar (Olea europea sativa,vitis vinifera) cv Kalinjot , cv Shesh. The researches carried out in three vegetative cycles (2006 - 2008) in the coastal area of Vlore. The irrigation of fruit trees applied to maintain constant land humidity at 70%, while in other five trees not applied any irrigation. The vegetative growth of 200 branches, the inflorescence and the flower abscission until the fruit maturation in dynamics in each tree estimated. Indicators of fruit caliber (fresh weight, dry matter, oil percentage and acidity) estimated in 100 fruits of each tree. The analysis of variance realized according to JMP software. Results obtained confirmed the biological effect of irrigation on vegetative and reproductive characteristics of olive fruit trees. The progressive growth of branches increased 234%, while the fructification 210%, fruits caliber 74% and percentage of oil 13%. Irrigation do not influence so much in the increased oil percentage of the fruit, but the increased yield (267%) affected the higher general oil content of the tree. Key words: olive, grapevine, cv Kalinjot , cv Shesh, irrigation, fructification Introduction Albania, with a developed agriculture, where pomology occupies a surface that reaches about 100 000 hectares, 2/3 of which is monoculture, only 30% of them are under water (7). Olive, thanks to its accordance possibilities, populated lots of Mediterranean climate zones with lack of rains or where their irregularities are big.