R SANGEETHA VISHNUPRABHA et al. 2020. Optimizing maturity index calculation of groundnut in selected varieties at Coimbatore condition: Optimizing maturity index calculation of groundnut in selected varieties at Coimbatore condition. Journal of Oilseeds Research. 37, Specialissue (Mar. 2020). DOI:https://doi.org/10.56739/jor.v37iSpecialissue.139284.