| Summary: | The main object of this work is the identification of possible microbial infections in tomato cultivation in geothermal greenhouses. The hydroponical system, is a “close type” (for fertilization and irrigation water reuse), while at the same time exploiting rainwater collected from the gutters of greenhouses. The purpose of this experimental work is to identify the detection of pathogenic microorganisms (total microbial flora, E. Coli, coliforms, Enterococci and Cl. Perfrigen) in tomato fruits and also to fertigation water used. The main question of this research is about the possibility of contamination of tomato fruits with bacteria. From the microbiological analyses performed it was revealed that populations of E. coli were not detected, while the populations of coliforms identified were within the permissible limits of intestinal bacteria (coliforms >10000), which can be derived and detected in tomato from natural inputs such as of water, soil and insects.
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