Efficacy of Trichoderma hamatum, Rhizobium and validamycin 3%L against Soil Borne Diseases of Green Gram

Author: Adyasha Das and Shyama Sundar Mahapatra

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Abstract

Use of biocontrol agents against soil borne pathogens is gaining importance in the present situation for eco-friendly management of diseases. Fusarium oxysporum and sclerotium rolfsii are the major yield limiting factors of green gram. For eco-friendly management of diseases caused by these, bio-agents and plant protectant were evaluated against the soil borne diseases in pot culture experiment. The combination enhanced the plant growth parameters and decreased the percent disease incidence. The Treatment with seed treatment and soil application of Trichoderma hamatum enriched vermicompost, Rhizobium and Validamycin 3% L showed good result in case of F. oxysporum with higher no. of pods (11.0), no. of grains (11.0), 1000 grain weight (41.73g), leaf no. (9.66), shoot length (48.61cm), root length (23.65cm), dry matter (11.86g), chlorophyll content (3.20mg) and lowest disease incidence (5.30%). In case of S. rolfsii the same treatment was also found to be best with highest no. of pods (10.83), no. of grains (10.67), 1000 grain weight (41.79g), leaf no. (9.50), shoot length (48.37cm), root length (23.62cm), dry matter (11.85g), chlorophyll content (3.16 mg) and lowest disease incidence (5.65%). Soil application of bio agents enriched with vermicompost showed additive effect over the seed treatments.

Keywords

Trichoderma hamatum, Rhizobium sp., Sclerotium rolfsii, Fusarium oxysporum, Validamycin 3% L

Conclusion

Integrated application of Trichoderma hamatum enriched vermicompost, Rhizobium and Validamycin 3%L has maximised the yield attributing characters@7, 14, 21 and 21 DAS. Synthetic fertilisers and pesticides have greatly increased crop yield, but their widespread usage has resulted in environmental issues such as soil salinity, pathogen resistance and other issues. Green technology, particularly microbial applications, may provide superior alternatives to chemicals. In comparison to chemical pesticides, the popularisation of biopesticides has been extremely sluggish. At the end it may be concluded that the application of Trichoderma can be considered as a safer way for managing diseases which modifies the morphological characters of the plant to adapt to the situation.

References

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How to cite this article

Adyasha Das and Shyama Sundar Mahapatra (2022). Efficacy of Trichoderma hamatum, Rhizobium and validamycin 3%L against soil borne diseases of green gram. Biological Forum – An International Journal, 14(4): 1381-1384.