Stimulatory effect of plants growth of wheat (triticum aestivums) by pgpr (plant growth-promoting rhizobacteria) in morocco

Abstract

Background: PGPR (Plant Growth Promoting rhizobacteria) stimulate plant growth in the absence of pathogens. These include the direct effects of air and increases root mass, strains root, and accelerated raising of seed lings. These increases are generally explained by better sampling and nutrient up take by the plant, the production of plant hormones and the development of induced resistance in plants. Method: As part of this work, some PGPR bacterial strains were evaluated on the cultivation of wheat in the tunnel. Result: The isolates were closely related to Paenibacillus brasiliensis (2025-11), Pantoea agglomerans (2074-1), Bacillus cereus (2015-1), Bacillus cereus (2027-2), Serratia proteamaculans (2025-1), Pantoea agglomerans (2066-7), Acinetobacter (2077-5) and Bacillus sp ( 2026-2). The results of this study demonstrated the ability of the Bacillus sp strain to increase the length of their system of the wheat plant at higher levels in comparison with the control plants. Conclusion: Also this stimulated the length of the root system of culture, while the bacterial strain Pantoea agglomerans showed satisfactory results in terms of plant growth parameter, namely chlorophyll and fresh pea’s plants of wheat.