Fluorescent Pseudomonads As Prospective Bioinoculants For Sunflower

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A. A. Suresh, Srinivas Munjam, V. Praveen Kumar, V. Krishna Reddy and S. Ram Reddy

Department of Microbiology, Kakatiya University, Warangal-506009, T.S.India

Fluorescent pseudomonads (FLPs) play a significant role in the plant growth promotion and health. Hence, the presence of FLPs and their ability to colonize the root surface determine the extent of plant growth. The aim of the present investigations was to isolate, screen and characterize the FLPs from the rhizosphere of sunflower. FLPs were isolated from the rhizospher of sunflower grown in different agroedaphic location of Telangana (India). Rhizospher soils supported more FLPs than the non-rhizosphere soil. Out of 150, 20 FLP isolates were found to be efficient isolates since these exhibited the ability to produce plant growth promoting substances like IAA, GA, siderophores, protease, cellulase and chitinase apart from phosphate solubilization. Based on these characteristics five isolates viz, MBPS-1, MBPS-30, MBPS-14, MBPS-66 and MBPS-79 were selected and further evaluated for their possibility of use as bioinoculants. Through the selected five isolates varied in individual attributes, the present studies indicate that they can be projected as potential bioinoculants for sunflower crop.

 

Keywords : Fluorescent pseudomonads, Plant growth promotion, Bioinoculants, Sunflower.

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