Bacteria consortium optimization improves nutrient uptake, nodulation, disease suppression and growth of the common bean (Phaseolus vulgaris) in both pot and field studies

摘要: Abstract Several plant growth promoting bacteria (PGPB) were isolated from the nodules and rhizosphere of common bean evaluated for their potential to improve its yield. Among these, 86% isolates produced IAA siderophore whereas almost all (95%) able solubilize inorganic phosphate, only 4.54% produce ACC deaminase. three had superior characteristics. These identified by 16S rRNA sequence homology as belonging Bacillus sp., Pseudomonas Rhizobium leguminosarum. All strongly inhibited several pathogens in vitro. Efficiency these strain consortia was pot assay well a field study. In both studies strains, singly or consortia, increased germination, height weight nodulation compared controls. Our results show that more efficient at promotion disease suppression than strains applied individually. The number pods per plant, seeds pod, grain yield, stover biological harvest index most consortium-3, followed consortium-2, consortium-1, then used singly. Therefore, utilization bacterial consortium comprised RPN5, BPR7 PPR8 could be beneficial maximize yield crop field.