Seed to plant transmission of Xanthomonas campestris pv. vignicola isolates in cowpea

by Okechukwu, R.U., Ekpo, E.J.A., Okechukwu, O.C.
Published 2010-03-18

Assessment of farmers' field for root rot disease on improved cassava varieties released in Nigeria

by Afolabi, C.G., Okechukwu, O.C., Kehinde, I.A., Okechukwu, R.U.
Published 2011