Biotic and abiotic stresses exert a serious impact on crop productivity throughout the world. The alternate strategy is to introduce tolerant microbes into plants under stress conditions. Intensive research attempts are underway to improve plant growth, enhance tolerance level against these stresses and protect plants by using plant growth promoting rhizobacteria (PGPR) which have a great potential for sustainable crop production. | Enhancement of plant growth by using PGPR for a sustainable agriculture: A review
