Ogedengbe, Kolawole, Agricultural and Environmental Engineering, Faculty of Technology, University of Ibadan, Ibadan, Nigeria
Oghene, Ezekiel Eromed, Delta State University, Abraka, Nigeria
Ogunrewo, Olubola Moronke, Department of Agricultural Sciences, Wesley University of Science and Technology
Ojerinde, Kayode Daniel, Federal University of Technology, Akure, Nigeria
Oke, Adebayo Olubukola, Institute of Agricultural Research and Training, Obafemi Awolowo University, Moor Plantation, Ibadan, Nigeria.
Okompu, Davina, 1Department of Agricultural Economics Extension, Delta State University, Asaba Campus, Asaba, Delta State, Nigeria
Okoye, Chukwuemeka Uzoma, Department of Agricultural Economics, Faculty of Agriculture, University of Nigeria, Nigeria
Okpoho, Nkweamaowo Andy, Federal University of Technology, Minna, Nigeria
Oku, Effiom, United Nations University Institute for Natural Resources in Africa
Okuneye, Peter Adebola, Federal University of Agriculture, Abeokuta
Oladele, Idowu, North West University Mafikeng Campus South Africa
Oladele, Oladimeji Idowu, Department of Agricultural Economics, Education and Extension, Botswana College of Agriculture University of Botswana, Gaborone
Oladele, Oladimeji Idowu, Department of Agricultural Economics and Extension, North – West University Mafikeng Campus Mmabatho (South Africa)
Oladele, Oladimeji Idowu, Sasakawa Africa Fund for Extension Education (SAFE). Ethiopia (Ethiopia)
Olatunde, Akinola Modupe, Monitoring and Remediation Research Group, Environmental Biology Research Unit, University of Lagos, Nigeria
Olayungbo, Adenike Anike, Obafemi Awolowo University, Ile-Ife
Olorunfemi, Oluwasogo David, Department of Agricultural Extension and Rural Development. University of Ilorin. Nigeria
Olowolafe, Mercy Oluremi, Institute of Agricultural Research and Training, Obafemi Awolowo University, Moor plantation, Ibadan
Omoyajowo, Koleayo Oluwafemi, environmental Biology Research Unit, Cell Biology & Genetics, University of Lagos, Nigeria
Onana, Jean-Michel, IRAD/ Herbier National du Cameroun
Ongaro, Luca, Independent Researcher
Orékan, Vincent, Laboratoire de Biogéographie et d’Expertise Environnementale, Faculté des Lettres, Arts et Sciences Humaines, Université d’Abomey-Calavi 01 BP 526 Cotonou (République du Bénin)
Orioli, Lorenzo, 1, Via del Romito – 50134 Florence, Italy
Orioli, Lorenzo, Italian Agency for Development Cooperation, Largo Louis Braille 4, 50131 - Florence, Italy
Orosile, Olufunke Rachael, University of Ibadan