20Oct 2017

ISOLATION OF IAA PRODUCING BACTERIA FROM SOIL AND OPTIMISATION OF CULTURE CONDITIONS FOR MAXIMUM IAA PRODUCTION.

  • Department of Botany, Andhra University, Visakhapatnam, India. Pin- 530 003.
  • TRIMS Lab Visakhapatnam India.
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Production of growth hormones has been the major criteria of bacteria in plant growth promotion. Laboratory study conducted to isolate the bacteria having Indole Acetic Acid (IAA) producing activity from soils under different agriculture practices and a virgin soil. The bacterial strains were observed for their IAA production, the major growth promoting trait helpful for the sustainable agriculture. IAA production from different bacterial strains was estimated for 1, 4, 6, 8 days of bacterial growth using salkowski reagent. All six isolates were observed for the production of IAA, among them I4 and I5 isolates were comparatively recorded with high competence. The culture conditions were optimised for two strains to determine the effect of additional carbon, nitrogen sources and pH of the culture media on IAA production. At optimised conditions 35.4?g/ml and 39.7 ?g/ml of IAA concentrations were observed in culture media with I4, I5 isolates respectively.

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[Sadhana baggam, S. B. Padal, V Ravi Sankar Ummidi, Ashok Paltati and Nikitha Thanagala. (2017); ISOLATION OF IAA PRODUCING BACTERIA FROM SOIL AND OPTIMISATION OF CULTURE CONDITIONS FOR MAXIMUM IAA PRODUCTION. Int. J. of Adv. Res. 5 (Oct). 1003-1010] (ISSN 2320-5407). www.journalijar.com

sadhana.baggam
reaserch scholar

DOI:

Article DOI: 10.21474/IJAR01/5617      
DOI URL: http://dx.doi.org/10.21474/IJAR01/5617

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