ORTEGÓN, A. S.; DÍAZ, A. Response of sunflower cultivars to the density of population in two environments. Agronomía Mesoamericana, [S. l.], v. 10, n. 2, p. 17–21, 2006. DOI: 10.15517/am.v10i2.17929. Disponível em: https://revistas.ucr.ac.cr/index.php/agromeso/article/view/17929. Acesso em: 28 mar. 2024.