Fig. 3. Shoot biomass of common bean as affected by genotype, competition and phosphorus availability in the field at Guangzhou, China. Shallow rooted genotypes (RIL 17 in panel A, RIL 7 in panel B), and deep rooted genotypes (RIL 24 in panel A, RIL 38 in panel B) were included. Each bar represents the mean of five replicates; error bar represents the standard error of the mean.