1. Adet Agricultural Research Center, Forestry Research Directorate, Bahir Dar, Ethiopia
2. Amhara Agricultural Research Institution, Forestry Research Directorate, Bahir Dar, Ethiopia
3. College of Agriculture and Environmental Sciences, University of Gondar, Gondar, Ethiopia
4. Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) - Biodiversity and Forestry Programme (BFP) (GIZ-BFP), Addis Ababa, Ethiopia