Bello, O., Afolabi, M., Ige, S., Abdulmaliq, S., Azeez, M. and Mahmud, J. (2012) “Yield response of diallelic crossed maize (Zea mays L.) genotypes to varying nitrogen regimes in Nigeria”, Journal of Bio-Science, 19, pp. 43–52. doi: 10.3329/jbs.v19i0.13000.