Journal of Microbiology and Biotechnology

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Effects of Co-Cultures, Containing N-Fixer and P-Solubilizer, on the Growth and Yield of Pearl Millet (Pennisetum glaucum (L.) R. Br.) and Blackgram (Vigna mungo L.)

  • POONGUZHALI POONGUZHALI (Department of Agricultural Chemistry, Chungbuk National University) ;
  • SELVARAJ SELVARAJ (Department of Agricultural Chemistry, Chungbuk National University) ;
  • MADHAIYAN MUNUSAMY (Department of Agricultural Chemistry, Chungbuk National University) ;
  • THANGARAJU MUTHU (Department of Agricultural Microbiology, Tamil Nadu Agricultural University) ;
  • RYU JEOUNGHYUN (Department of Agricultural Chemistry, Chungbuk National University) ;
  • CHUNG KEUNYOOK (Department of Agricultural Chemistry, Chungbuk National University) ;
  • SA TONGMIN (Department of Agricultural Chemistry, Chungbuk National University)
  • Published : 2005.08.01
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Abstract

Inoculation of the carrier-based mixed bioinoculants af N-fixer (Azospirillum lipoferum strain Az204/Rhizobium strain BMBS P47) and phosphate-solubilizing bacterium (Bacillus megaterium var phosphaticum strain Pb 1) promoted growth and yield of pearl millet and blackgram under pot-culture conditions. The mixed inoculant of Az204 and Pb 1 enhanced germination, seedling vigor, plant height, and seed weight, and resulted in $6\%$ increase in grain yield of pearl millet. Likewise, the mixed inoculant of BMBS P47 and Pb1 increased growth, nodulation, and yield in blackgram. The rhizosphere soil enzyme activities, including nitrogenase, urease, and phosphatase, in both pearl millet and blackgram were significantly increased by the inoculation of the mixed inoculant, compared to that of the individual inoculants. The results clearly indicate the beneficial effect of co-culturing the N-fixer and P-solubilizer in inoculants production.

Keywords

References

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