1. Department of Crop Science and Horticulture, Faculty of Agriculture. Federal University, Oye-Ekiti, Nigeria
2. National Horticultural Research Institute Ibadan, Idi-Ishin, Jericho, Ibadan, Nigeria
3. Africa Agricultural Technology Foundation (AATF), Nairobi, Kenya
4. Department of Horticulture and Crop Science, The University of Jordan, Amman, Jordan