Back to Contents

FREE FULL TEXT PDF

EFFICACY OF PSEUDOMONAS AERUGINOSA AND BRADYRHIZOBIUM SP., IN THE CONTROL OF ROOT ROT DISEASE IN CHICKPEA

ISHRAT IZHAR, S.EHTESHAMUL-HAQUE, M. JAVEED AND A.GHAFFAR*

Abstract: Use of growth promoting becterium Pseudomonas aeruginosa, strain Pa₆ and Pa₁₂ significantly (p <0.05) reduced the infection of Macrophomina phaseolina and Rhizoctonia solani on chickpea. P.aernginasa strain Pa₁₂ was found effective against F.oxyspornm and Pa₆ against F.solani. Combined use of Bradyrhizobium sp., (TAL 480) and P.aernginosa showed complete control of R.solani and F.oxyspornm infection. Use of bradyrhizobia with P. aeruginosa also showed better control of F.solani infection than either used alone. Greater number of nodules per plant were produced where bradyrhizobia was used with strains of P. aernginosa as compared to bradyrhizobia used alone.

M.A.H. Qadri Biological Research Centre, University of Karachi, Karachi-75270, Pakistan.
Department of Botany, University of Karachi, Karachi-75270, Pakistan.