Effect the site, heartwood and sapwood on some chemical characterization composition of Quercus aegilops L. naturally growing in Kurdistan region of Iraq. Euphrates journal of agricultural science, [S. l.], v. 18, n. 3, 2026. Disponível em: https://ejs-agri.com/index.php/EJAS/article/view/493. Acesso em: 4 nov. 2026.