Vol. 5 (1) : January-February 2014 issue
Green Farming Vol. 5 (1) : 1-6 (January-February, 2014)
Effect of phosphate solubilizing microorganisms on growth and yield of chilli (Capsicum annuum L.) plants
S.B. NAGARAJa1*, K. TAMIL VENDANa2, MAHADEVASWAMYa3 and M.B. ROODAGIb4
aDepartment of Agriculture Microbiology, University of Agricultural Sciences, Raichur - 584 102 (Karnataka)
bDepartment of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, Dharwad - 580 005 (Karnataka)
Designation : 1,4Ph.D. Scholar *(sbnagaraj298@gmail.com), 2Assoc. Prof. & Head, 3Associate Professor
Subject : Biotechnology, Molecular biology, Agriculture Microbiology and Cancer Res.
Paper No. : P-0375
Total Pages : 6
Received : 05 July 2012
Revised accepted : 14 December 2013
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Citation :
S.B. NAGARAJ, K. TAMIL VENDAN, MAHADEVASWAMY and M.B. ROODAGI. 2014. Effect of phosphate solubilizing microorganisms on growth and yield of chilli (Capsicum annuum L.) plants. Green Farming Vol. 5 (1) : 1-6 (January-February, 2014)
ABSTRACT
Phosphate solubilizing microorganisms (PSM) from major chilli growing areas of Upper Krishna Project (UKP) command area were isolated from rhizosphere soils. Fifty phosphate solubilizing bacteria and fifty phosphate solubilizing fungi were isolated from fifty chilli rhizosphere soil and incubated on Pikovskaya's agar for bacteria Pikovskaya's agar supplemented with rose bengal for fungi. Two efficient PSMs were selected based on in vitro P-solubilization. The PSB and PSF isolates Pi released at 6 DAI ranged from (PSB-Y-9) 85.05 to 145.03 mg/l and (PSF-DD-3) 82.02 to 157.30 mg/l in Pikovskaya's broth. They were tested for their efficacy to solubilize different P sources in pot culture experiment and chilli as a test crop. Pot experiment showed that the inoculation of PSMs significantly increased (T8) plant height, number of branches, P concentration, and root biomass, root and shoot dry matter content, number of fruits per plant and green chilli yield over SSP control, RP control and absolute control.
Key words :
Capsicum annuum, Chilli, Phosphate solubilizing microorganisms, Phosphate solubilizing bacteria, Phosphate solubilizing fungi, Rock phosphate, Single super phosphate.
