Growth, development and content of flavonoids in calendula (Calendula officinalis L.). Acta Scientiarum. Agronomy, [S. l.], v. 38, n. 1, p. 69–75, 2016. DOI: 10.4025/actasciagron.v38i1.25976. Disponível em: https://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/25976. Acesso em: 1 jun. 2026.