Vol. 12, Issue 8 (2023)

Author(s):
M Avanija, G Padmaja, B Vidyasagar, Y Hari, G Uma Devi, J Hemantha Kumar and CH Ramulu

Abstract:
Mungbean dry root rot incited by Macrophomina phaseolina (Tassi) Goid is prime importance in decreased crop production. Mungbean cultivation has recently faced considerable challenges from dry root rot, which can result in production losses by lowering field plant numbers at both the seedling and adult stages. In addition to lowering crop yields, pathogen damage lessens their ability to fix nitrogen, which raises pathogen concentrations in the soil. The greatest approach to managing the mungbean DRR is the host plant resistance since it is both cost-effective and environmentally beneficial. In order to identify sources of genetic resistance to dry root rot incited by Macrophomina phaseolina, Forty seven genotypes of mungbean were tested through artificial soil inoculation in poly house at Regional Agricultural Research Station, Warangal, Telangana during the year 2023. Among 47 mungbean genotypes, six genotypes viz., MGG-529, MG-549, WGG-42, MG-505, Pusa 9072 and WGG-25 showed a resistant response to dry root rot; fifteen genotypes were found to be moderately resistant; 18 genotypes were shown to be susceptible, and 8 genotypes are highly susceptible under poly house conditions. These lines can also be used as a source of resistance in breeding programmes to create dry root rot-resistant cultivars.