Isolation, screening and in-vitro characterization of plant growth-promoting Bradyrhizobium isolates from the nodules of Bambara groundnut (Vigna subterranean) for potential use as bioinoculants - Seidu, Osman Abdulai; Githiri, Stephen Mwangi; Wesonga, John Mwibanda; Ngumi, Victoria Wambui (Frontiers in Sustainable Food Systems, 2025)