EXPLORING BIOCHAR AS A SUSTAINABLE STRATEGY FOR SUPPRESSING MACROPHOMINA PHASEOLINA CAUSING ROOT AND STEM ROT OF SESAME
DOI:
https://doi.org/10.48165/jpds.2026.21.01.08Keywords:
Biochar, Macrophomina phaseolina, Root and stem rot, SesameAbstract
Sesame (Sesamum indicum L.) is an important oilseed crop widely cultivated in tropical and subtropical regions. However, its productivity is severely affected by root and stem rot caused by Macrophomina phaseolina, a soil-borne pathogen that survives in soil through persistent microsclerotia and causes significant yield losses, particularly under high-temperature and moisture-stress conditions. The present study was conducted to evaluate the efficacy of eucalyptus wood biochar, applied alone and in combination with beneficial bioagents, for the management of root and stem rot of sesame under controlled conditions. The experiment was laid out in a Completely Randomized Design (CRD) with seven treatments and three replications. Biochar was applied at different concentrations (5, 10, and 30 g kg⁻¹ soil) either alone or in combination with Trichoderma viride, Pseudomonas fluorescens, Bacillus subtilis, and Jawahar Mycorrhiza. Observations on seed germination, shoot length, root length, and disease incidence were recorded at 30, 45, and 60 days after sowing (DAS). Among all treatments, biochar at 5 g kg⁻¹ soil combined with T. viride proved to be the most effective, recording 88.77% disease reduction over the untreated control at 60 DAS, along with the highest germination (66.60%) and improved plant growth. In contrast, the higher biochar concentration (30 g kg⁻¹ soil) was comparatively less effective, indicating a dose-dependent response. Overall, the integration of eucalyptus wood biochar with beneficial bioagents effectively suppressed M. phaseolina and enhanced sesame growth, suggesting its potential as an eco-friendly strategy for managing root and stem rot of sesame.
References
Araujo, A. S., Blum, L. E. B., & Figueiredo, C. C. (2019). Biochar and Trichoderma harzianum for the control of Macrophomina phaseolina. Brazilian Archives of Biology and Technology, 62, e19180259.
Asif, M., Haider, M. S., & Akhter, A. (2023). Impact of biochar on Fusarium wilt of cotton and the dynamics of soil microbial community. Sustainability, 15(17), 129–136.
Atucha, A., & Litus, G. (2015). Effect of biochar amendments on peach replant disease. HortScience, 50(6), 863–868.
Bonanomi, G., Ippolito, F., & Scala, F. (2015). A “black” future for plant pathology? Biochar as a new soil amendment for controlling plant diseases. Journal of Plant Pathology, 97(2), 223–234.
Ge, S., Gao, J., Chang, D., He, T., Cai, H., Wang, M., Li, C., Luo, Z., Yang, E., Meng, J., & Gao, M. (2023). Biochar contributes to resistance against root rot disease by stimulating soil polyphenol oxidase. Biochar, 5, 55.
Graber, E. R., & Elad, Y. (2013). Biochar impact on plant resistance to disease. In N. Ladygina & F. Rineau (Eds.), Biochar and Soil Biota (pp. 41–68). CRC Press.
Jaiswal, A. K., Elad, Y., Graber, E. R., & Frenkel, O. (2014). Rhizoctonia solani suppression and plant growth promotion in cucumber as affected by biochar pyrolysis temperature, feedstock and concentration. Soil Biology and Biochemistry, 69, 110–118.
Jaiswal, A. K., Elad, Y., Paudel, I., Graber, E. R., Cytryn, E., & Frenkel, O. (2017). Linking the belowground microbial composition, diversity and activity to soil-borne disease suppression and growth promotion of tomato amended with biochar. Scientific Reports, 7, 44.
Jaiswal, A. K., Graber, E. R., Elad, Y., & Frenkel, O. (2019). Biochar as a management tool for soil-borne diseases affecting early-stage nursery seedling production. Crop Protection, 120, 34–42.
Kumar, S., Meena, N. L., & Panwar, N. L. (2023). Evaluation of biochars against Fusarium oxysporum f. sp. radicis-cucumerinum and their impact on growth parameters of cucumber under pot conditions. International Journal of Environment and Climate Change, 13(10), 1571–1584.
Medeiros, E. V., Lima, N. T., de Sousa Lima, J. R., et al. (2021). Biochar as a strategy to manage plant diseases caused by pathogens inhabiting the soil: A critical review. Phytoparasitica, 49, 713–726.
Mishra, S., Gupta, K. N., Kurmi, S., & Vishwakarma, A. K. (2025). Impact of weather parameters and fungicide strategies on the management of root and stem rot in sesame caused by Macrophomina phaseolina. International Journal of Environment and Climate Change, 15(1), 475–489.
Singh, N., & Kumar, A. (2020). Plant disease management through biochar: A review. International Journal of Current Microbiology and Applied Sciences, Special Issue-11, 3499–3510.
Wu, H., Wu, H., Jiao, Y., Zhang, Z., Rensing, C., & Lin, W. (2021). The combination of biochar and plant growth-promoting bacteria stimulates differentiation in rhizosphere soil microbiome and metabolites to suppress soil-borne pathogens under consecutive monoculture regimes. GCB Bioenergy, 14, 84–103.
Mishra, S., Gupta, K. N., & Jain, A. K. (2026). Exploring biochar as a sustainable strategy for suppressing Macrophomina phaseolina causing root and stem rot of sesame. Journal of Plant Disease Sciences, 21(1), 45–50. https://doi.org/10.48165/jpds.2026.21.01.08
