Influence of Combine Harvester Forward and Reel Speeds on Wheat Harvesting Losses in Gezira Scheme (Sudan) Omer A. Abdalla1, Mohamed. H. Dahab1*, Mukhtar M. Musa2 and Eltayeb S. N. Babikir1 Abstract The present study was conducted at the demonstration farm of Massaed Technology Transfer Center, Gezira State, during 2016/2017, to