Participatory approach of preferred traits, production constraints and mitigation strategies: implications for soybean breeding in Guinea Savannah zone of Ghana oleh Francisca Addae-Frimpomaah, Godwin Amenorpe, Nicholas Ninju Denwar, Samuel Amiteye, Gloria Anyesom Adazebra, Frederick Leo Sossah, Selorm Akaba, Abdul Rashid Issah, Harry Mensah Amoatey