M SANTHA LAKSHMI PRASAD and T MANJUNATHA 2023. Standardization of screening technique for root rot disease (Macrophomina phaseolina) of castor: Standardization of screening technique for root rot disease (Macrophomina phaseolina) of castor. Journal of Oilseeds Research. 40, Specialissue (Dec. 2023). DOI:https://doi.org/10.56739/jor.v40iSpecialissue.145192.