Soğan(Allium cepa L.) Rizosferindeki Fosfat Çözen Bakterilerin İzolasyonu, Karakterisasyonu ve Soğan Gelişimi Üzerine Etkisi

In this study 269 phosphate solubilizing bacteria (PSB) strains were isolated from onions rhizosphere. The 15 most efficient PSB selected. Based on BIOLOG profiling and the LOPAT test system, identified as Enterobacter cloacae (7), Yersinia intermedia, Pantoea agglomerans, Bacillus subtilis(2), pumilius, Lysinibacillus sphaericus atrophaeus(2). effect onion growth was investigated under greenhouse conditions. These increased plant height (11.7 to 38.8%), number of leaves (3 70%), bulb diameter (6.4 64.5%), average root length (2.6 44.7%), fresh weight (2.9 34.1%) dry (1.5 40.6%) when compared negative control. Among these effective inoculants werethe highest P solubizing E.cloacae EB-14 E. OB-169 strains, which significantly all parameters commercial activator ISR 2000. results demonstrated potential use for growth.