RANGANATHA, A R G; ANJANA, R M; NAGARAJ, G. Assessment of variability among inbreds, hybrids and populations of sun flower (Helianthus annuus). The Indian Journal of Agricultural Sciences, Delhi, India, v. 76, n. 7, 2011. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/3010. Acesso em: 26 oct. 2025.