Journal
EUROPEAN JOURNAL OF SOIL BIOLOGY
Volume 47, Issue 5, Pages 288-295Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejsobi.2011.07.002
Keywords
Phaseolus vulgaris; Arbuscular mycorrhiza; AMF; Rhizoctonia solani; Pseudomonas fluorescens; Mustard oil cake
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Root-rot caused by Rhizoctonia solani is a destructive disease of French bean (Phaseolus vulgaris) in the northern plains of India. A randomized block design field experiment was laid out in loam soil containing low organic carbon, nitrogen and medium available phosphorus to evaluate the disease controlling potential of soil inhabiting arbuscular mycorrhizal fungi (AMF) and bacteria. Plants treated with AMF either alone or in combination with Pseudomonas fluorescens, could endure the root-rot incidence under field conditions and produced higher pod yield. Combined inoculation of AMF + P. fluorescens was more effective for controlling the disease as well as increasing the yield. Addition of mustard oil cake to dual inoculation i.e. AMF + P. fluorescens was found highly effective. AMF + 1/2 dose chemical phosphorus also improved pod yield and 100-seed weight even in R. solani infected plants. Mixed inoculations along with mustard oil cake were found best treatments for root-rot disease control management. (C) 2011 Elsevier Masson SAS. All rights reserved.
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