Effect of split applications of silicon nanoparticles and conventional sources of Si on growth, antioxidant enzymes, and cadmium uptake in wheat under Cd stress - Muhammad Aamer Maqsood; Nimra Ashraf; Muhammad Zia-ur-Rehman; Muhammad Usman; Muhammad Rizwan; Hesham F. Alharby; Amnah M. Alamri; Refaat A. Abohassan (South African Journal of Botany, 2026)