Zinc-regulated growth, chlorophyll, and antioxidant activity drive biofortification in rice varieties. - Ammara H; Zulfiqar A; Saleem A; Sardar R; Zulfiqar U; Raza MAS; Maqsood MF; El-Beltagi HS; Alqahtani MD (Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine, 2026)