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Bacterial Diversity in Sugarcane (Saccharum Officinarum) Rhizosphere of Saline Soil

Author Affiliations

  • 1Govt. of Maharashtra Rajaram College, Kolhapur-416004, Maharashtra, INDIA

Int. Res. J. Biological Sci., Volume 2, Issue (2), Pages 60-64, February,10 (2013)


A bacterium including PGPR plays a very important role in plant growth promotion and increase yield of crops. Most of the bacteria produce phytohormones, fixes atmospheric nitrogen, solublizes the phosphates and resist phytopathogens by production of siderophores. An understanding of microbial diversity perspectives in agricultural contest, is important and useful to know soil quality and also helpful for taking measures for soil management and increased plant productivity. It is also important to understand the relationship of soil and plants with the diversity of associated bacteria for their better exploitation. Therefore, it is important to know the microflora and their diversity. Most of the rhizospheric bacterial diversity from normal soil have been studied and organisms explored for their use as bioinoculents. However, saline soil rhizospheric microfloras remain unexplored. By considering this, in the present study fourty three bacterial isolates including PGPR have been isolated from saline soil of Kolhapur district of southern Maharashtra, India. Isolates were identified up to genus and species level. Few isolates were studied their nitrogen fixing and phosphate solublizing activity. Present study showed that amongst nitrogen fixing bacteria Azotobacter chroococcum found to be most dominant and Bacillus subtilis was found to be most dominant phosphate solublizer. Study indicated the importance of these organism as bioinoculents for saline soil and can be explored for biofertilizer production.


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