SHIVKUMAR, SHIVKUMAR, L SUBBA RAO, T RAM, N D MAJUMDER, G PADMAVATHI, U PRASADA RAO, and K KRISHNAIAH. 2013. “Genetic Base and Coefficient of Parentage of Rice (Oryza Sativa) Varieties Released in Kerala”. The Indian Journal of Agricultural Sciences 68 (1). https://epubs.icar.org.in/index.php/IJAgS/article/view/27145.