SINGH, S P; SHUKLA, SUDHIR. Stability parameters for opium and seed yield in opium poppy (Papaver somniferum). The Indian Journal of Agricultural Sciences, Delhi, India, v. 71, n. 5, 2014. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/39797.. Acesso em: 19 sep. 2024.