Report on the national zonal maize variety trials conducted between 1968 and 197
Obilana
Report on the national zonal maize variety trials conducted between 1968 and 197 - Ibadan 1974 - 0.5 - No. 111; Nigeria, Federation D .
Report on the national zonal maize variety trials conducted between 1968 and 197 - Ibadan 1974 - 0.5 - No. 111; Nigeria, Federation D .