INFLUENCE OF IRRIGATION ON OLIVE AND GRAPE CULTURE

摘要

The study on irrigation and biological factors is realised in the autochthonous olive and grapevine cultivar (Olea europea sativa,vitis vinifera) cultivars Kalinjot and Shesh. The researches are carried out in 3 vegetative cycles (2006-2008) in the coastal area of Vlora. The irrigation of fruit trees is applied to maintain constant land humidity at 70%, while in other 5 trees was 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 are estimated. Indicators of fruit calibre (fresh weight, dry matter, oil percentage and acidity) are estimated in 100 fruits of each tree. The analysis of variance is realised according to JMP software. The results obtained have confirmed the biological effect of irrigation on vegetative and reproductive characteristics of olive fruit trees. The progressive growth of branches is increased 234%, while the fructification- 210%, fruits caliber- 74% and the percentage of oil - 13%. Irrigation does not influence so much the increased oil percentage of the fruit, but the increased yield (267%) has affected the higher general oil content of the tree.