Abstract
Nodulation, shoot dry weight and seed yield were used to evaluate the symbiotic effectiveness of elite and wild strains of rhizobia with bambara groundnut (Voandzeia subterranea (L.) Thouars) in Togo, West Africa, in 1984 and 1985. In both years, inoculation with rhizobia significantly increased nodule numbers, nodule dry weight, shoot dry weight and seed yield of the Kara variety of bambara groundnut. The benefit of inoculating the Ada variety was manifested by significant increases in seed yield. TAL 169 and TAL 1380 were the most effective of four NifTAL strains tested in 1984 but were outperformed in 1985 by TMUN and MAO 11, strains isolated in West Africa.