Management of chickpea wilt pathogen Fusarium oxysporum f. sp. ciceris by Trichoderma, Pseudomonas and Bacillus under in vitro

Author: Mudasser Ahmed Khan and T. Yella Goud

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Abstract

Chick pea (Cicer arietinum L.) is one of the leading legume crops, which contributes 18% of the worlds grain legume production, it serves as an important dietary protein source. Since last two decades, due to several biotic and abiotic constraints reduction in the cropping area and production was observed. Among the different biotic constraints crop production was majorly affected with vascular wilt disease caused by fungus Fusarium oxysporum f. sp. ciceris. The potential use as biocontrol agents against economically important soil borne plant pathogens with protective activity has been highlighted in recent decades as effective alternative to chemical fungicides. In the present investigation, the inhibition action of four antagonists Trichoderma spp. (Th-1 and Tv-1), P. fluorescens (Pf-1) and B. subtilis (Bs-1) was evaluated against the radial growth of F. oxysporum f. sp. ciceris was studied under in vitro conditions. The culture filtrates of all the four tested bio control agents were proved to be inhibitory to the pathogen. Among the two different Trichoderma spp. antagonists the culture filtrate of Th-8 was found effective with 23.70% of growth inhibition, followed by Tv-1 with 19.26% at 5 per cent concentration in comparison with antagonists Pf-1 and Bs-1.

Keywords

Chick pea, pathogen, Fusarium oxysporum f. sp. ciceris, vascular wilt disease

Conclusion

The use of antagonistic organisms for the management of chickpea Fusarium wilt disease causing pathogen F. oxysporum f. sp. ciceris is a effective and relatively safer way over the use of chemical fungicides, which affect the human health and also pollute ecosystem. It is observed from our results, that the T. viride and T. harzianum are found effective strains to promote the chickpea plant growth in F. oxysporum f. sp. ciceris challenged conditions, these strains may be commercialize as potential biocontrol agent only after a large filed trials.

References

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How to cite this article

Mudasser Ahmed Khan and T. Yella Goud (2022). Management of chickpea wilt pathogen Fusarium oxysporum f. sp. ciceris by Trichoderma, Pseudomonas and Bacillus under in vitro. Biological Forum – An International Journal, 14(1): 1825-1828.