Soybean is the miracle crops. It is the future hopes of the developing countries. That means the agro-processing plants in the Sub-Sahara, Africa needs to focus on holistic approaches(i.e. Plant Breeding, Plant Pathology, Entomology, Agronomy, Valu chain and others...). So, the book includes the crop breeding(improvements) part. Besides, this the stability analysis, mega-environments delineations also included. Mesfin Hailemariam