A. Ngakou, D. Nwaga, N.N. Ntonifor, M. Tamo, C.L.N. Nebane and I.A. Parh
International Journal of Agricultural Research 2 ( 9 ): 754 - 764 , 2007
A. Ngakou, D. Nwaga, C.L.N. Nebane, N.N. Ntonifor, M. Tamo and I.A. Parh
Journal of Plant Sciences 2 ( 5 ): 518 - 529 , 2007