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Asian Journal of Agricultural Research
Year: 2014  |  Volume: 8  |  Issue: 2  |  Page No.: 84 - 95

Bacillus subtilis Isolated from the Sugarcane Root Rhizosphere: A Potential Bioinoculum to Alleviate Salinity Stress in Sugarcane Cultivation

Gargi N. Edkie, Supriya Jadhav and D. Theertha Prasad    

Abstract: Symbiotic association of rhizospherial organisms helps plants for better adaptability and acquisition of nutrients required for sustainable growth and productivity. Bacillus subtilis isolated from the root rhizosphere of salinity tolerant sugarcane variety, CoM 0265 was evaluated as PGPR using commercially grown cultivar of sugarcane, Co 86032 exposed to salinity stress under greenhouse conditions. Morphological parameters viz., root- shoot length, leaf number, chlorophyll, cations like Mn, Cu, Fe and K showed significant increase with the Bacillus inoculum. MDA, proline, reducing sugar, protein, ascorbate peroxidase and catalase content, minerals like Na and Zn showed an increase with saline stress, but supplementing Bacillus inoculum caused significant reduction in these components and protected plants from salinity stress. The results of the study put together suggest that this Bacillus isolate has potential to be used as bioinoculum in sugarcane cultivation and improve productivity.

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