Figure 2From: Symbiotic functioning and bradyrhizobial biodiversity of cowpea (Vigna unguiculataL. Walp.) in AfricaSpecific nodule activity for the 9 genotypes grown at A) Wa in Ghana, B) Taung in South Africa. Bars with dissimilar letters indicate significant differences at p ≤ 0.05. Numerals on the top of each bar represent the different IGS types (strains) that were found in the cowpea nodules from the particular genotype.Back to article page