Evaluation of Fluorescent Pseudomonads for the Management of Rice Sheath Blight Disease

M. Surendran; G. S. Kannan; Kamala Nayar; S. Leenakumary

doi:10.18311/jbc/2013/3412

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Authors

M. Surendran
Rice Research Station, Moncompu 688 503, Thekkekara P.O., Alleppey District, Kerala ,IN
G. S. Kannan
Department of Plant Protection, Faculty of Agriculture and Animal Husbandry, Gandhigram Rural University, Gandhigram 624 302, Dindigul, Tamil Nadu ,IN
Kamala Nayar
Instructional Farm, College of Agriculture, Vellayani 695 522, Trivandrum, Kerala ,IN
S. Leenakumary
Rice Research Station, Moncompu 688 503, Thekkekara P.O., Alleppey District, Kerala ,IN

DOI:

https://doi.org/10.18311/jbc/2013/3412

Keywords:

Rice, Rhizoctonia solani, Sheath Blight, Fluorescent Pseudomonads.

Abstract

Pseudomonas fluorescens cultures were isolated from rhizosphere of rice cultivated in different locations of Kuttanad. Three effective strains viz., PF 43, PF 46, PF 47 and combined isolates PF 43+PF 46+PF 47 were tested in the farmers plot of nine different locations of Kuttanad against rice sheath blight disease during Rabi 2011-12. The data on disease incidence and severity indicated that the combined isolate was performed well in restricting the disease incidence and severity. The pooled data showed that combined strains of PF 43+46+47 was found most effective against sheath blight disease and thereby increased the grain yield than other single isolates as well as standard fungicide check.