Bello OB, Olawuyi OJ, Azeez MA, et al. GENOTYPIC VARIATION IN ENDOSPERM PROTEIN, LYSINE AND TRYPTOPHAN CONTENTS OF NORMAL EXTRA-EARLY MAIZE CULTIVARS AND THEIR QUALITY PROTEIN HYBRIDS UNDER NITROGEN STRESS AND NON-STRESS ENVIRONMENTS. JRS. 2025;2223(1-4):Pages: 27-48. Accessed January 16, 2026. http://jorscience.com/index.php/JRS/article/view/300