S. SHIVKUMAR, “Genetic base and coefficient of parentage of rice (Oryza sativa) varieties released in Kerala”, Indian J Agri Sci, vol. 68, no. 1, Feb. 2013, Accessed: Oct. 20, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/27145