T SELVAKUMAR et al. 2020. Evaluation of sunflower (Helianthus annuus L.) based cropping systems for enhanced productivity and efficiency: Evaluation of sunflower (Helianthus annuus L.) based cropping systems for enhanced productivity and efficiency. Journal of Oilseeds Research. 37, Specialissue (Mar. 2020). DOI:https://doi.org/10.56739/jor.v37iSpecialissue.140490.