The Effectiveness of Aqueous Extract of Cupressus Sempervirens L. In Reducing The Chlorophyll Concentration of Field Marigold Calendula Arvensis L. Damascus University Journal of agriculture sciences, [S. l.], v. 42, n. الثالث, 2026. Disponível em: https://journal.damascusuniversity.edu.sy/index.php/agrj/article/view/12850. Acesso em: 5 sep. 2026.