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American Journal of Plant Physiology 7 ( 6 ): 243 - 251 , 2012
G.O. Nkansah, A. Ayarna and T.J. Gbokie
Journal of Agronomy 10 ( 3 ): 84 - 91 , 2011
N.A. Adamafio, D.A. Annan, V. Amarh, G.O. Nkansah and M. Obodai
Journal of Biological Sciences 11 ( 7 ): 442 - 447 , 2011