Management of Cowpea Root-Rot Caused by Macrophomina phaseolina (Tassi) Goid, Using Plant Growth Promoting Rhizobacteria

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Authors

  • Department of Plant Pathology, Centre for Plant Protection Studies Tamil Nadu Agricultural University, Coimbatore, 641 003, Tamil Nadu ,IN
  • Department of Plant Pathology, Centre for Plant Protection Studies Tamil Nadu Agricultural University, Coimbatore, 641 003, Tamil Nadu ,IN
  • Department of Plant Pathology, Centre for Plant Protection Studies Tamil Nadu Agricultural University, Coimbatore, 641 003, Tamil Nadu ,IN
  • Department of Plant Pathology, Centre for Plant Protection Studies Tamil Nadu Agricultural University, Coimbatore, 641 003, Tamil Nadu ,IN
  • Department of Plant Pathology, Centre for Plant Protection Studies Tamil Nadu Agricultural University, Coimbatore, 641 003, Tamil Nadu ,IN
  • Department of Plant Pathology, Centre for Plant Protection Studies Tamil Nadu Agricultural University, Coimbatore, 641 003, Tamil Nadu ,IN

DOI:

https://doi.org/10.18311/jbc/2005/15060

Keywords:

Cowpea, Pseudomonas fluorescent, Root-Rot, Rhizosphere, Siderophore.

Abstract

Five different isolates of Pseudomonas fluorescens Migula were isolated from cowpea rhizosphere region and identified by biochemical tests. These strains were screened against Macrophomina phaseolina (Tassi) Goid. the causal organism of cowpea root-rot and the results revealed that SVPF2 isolate recorded maximum inhibition of mycelial growth against control. The mechanism of PGPR viz. iron-chelating agent (siderophore) and volatiles (HCN) production tests were studied and SVPF2 isolate positively reacted for siderophore and HCN production. The talc-based formulation of SVPF2 was prepared and the bioefficacy was tested under green house conditions. The seed and soil application of talc-based formulation of SVPF2 significantly reduced the root-rot incidence. The growth parameter viz. germination percentage and the vigour index were also increased in SVPF2 treated seeds.

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Published

2005-06-15

How to Cite

Sendhilvel, V., Buvaneswari, D., Kanimozhi, S., Mathiyazhagan, S., Kavitha, K., & Raguchander, T. (2005). Management of Cowpea Root-Rot Caused by <I>Macrophomina phaseolina</I> (Tassi) Goid, Using Plant Growth Promoting Rhizobacteria. Journal of Biological Control, 19(1), 41–46. https://doi.org/10.18311/jbc/2005/15060

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