The Bioscan, 4(4): 603-606, 2009
An International Quarterly Journal of Life Sciences
web site: www.thebioscan.in 
EFFECT OF MIXED CULTURE INOCULATION OF NATIVE RHIZOBIA AND 
AZOTOBACTER ON NODULATION AND DRY MASS OF GROUNDNUT 
(ARACHIS HYPOGEA L.) IN POT CULTURE EXPERIMENT
G. V. MALI* AND M. G. BODHANKAR1
Department of Microbiology, Bharati Vidyapeeth’s M. B. S. K. Kanya Mahavidyalaya,
Kadegaon, Sangli - 415 304 (M.S.)
1P.G. Department of Microbiology, B. V. U. Yashwantrao Mohite College, Erandawane, Pune - 411 038.
E-mail: gajamali@rediffmail.com


KEY WORDS
Groundnut
Rhizobium
Azotobacter

Mixed culture Nodulation
Dry mass
Received on: 23.07.2009 Accepted on: 27.11.2009 *Corresponding Author

ABSTRACT

A study on the effect of mixed culture inoculation of native isolates of Rhizobia and Azotobacter chroococcum on nodulation and dry mass of groundnut (Arachis hypogea L.) var. TPG 41, JL 286 and JL 501 was undertaken in pot culture experiment by using randomized block design. There was significant increase in nodulation and dry mass of each variety due mixed culture inoculation of native isolates of Rhizobia and Azotobacter over uninoculated control. Treatment with Azotobacter alone or Rhizobium alone and with mixture of Azotobacter and Rhizobium biofertilizers also increased nodulation and dry mass over control but it was less than the native species.