
In this present study a detailed survey for the occurance of Gluconacetobacter diazotrophicus populations from the rhizosphere of sugarcane coastal saline soils of cuddalore district of Tamilnadu. A total numper of 20 Gluconacetobacter diazotrophicus strains were isolated. The results of the present study also revealed a marked variation in the population of Gluconacetobacter diazotrophicus observed. A range of 0.57 percent to 1.14 percent of the total bacterial population was observed in the survey.