Influence of Bacterial Inoculation on Photosynthetic Capacity, Mineral Uptake, Total Protein and Amino Acid Content of Maize (Zea mays) under Diesel Stress

• Published in: International journal of agriculture and biology 2021-02, Vol.25 (2), p.530-538
• Main Author: Ummara, Ume
• Format: Article
• Language: English
• ISSN: 1560-8530; 1814-9596
• DOI: 10.17957/IJAB/15.1697

This study was undertaken to explore the influence of diesel contaminated soil and bacterial consortium on photosynthetic efficiency, ion uptake, chlorophyll fluorescence, chlorophyll pigments, amino acids and total protein content of maize crop. The experiment was consisted of (a) two maize varieties (MMR1 yellow and Pearl white), (b) diesel levels (0, 1.5, 2.5, 3.5 g kg-1 soil) and (c) two bacterial strains inoculation levels, (non-inoculated) and inoculated with Pseudomonas aeruginosa BRRI54, Acinetobacter sp. ACRH80 and Acinetobacter sp. BRSI56 with completely randomized design having four replication The results exhibited that diesel contaminated soil decreased photosynthetic efficiency, photosynthetic pigments i-e., „a‟, „b, carotenoids, chlorophyll fluorescence and k+ content, however, there is increase in amino acid accumulation, total protein and Na+ uptake. But inoculation of different bacterial strains enhanced the photosynthetic capacity of PSII, quantum yield (Fv/Fm), K+ uptake as compared to non-inoculated group along with hydrocarbon stress. The marginal lands contaminated with diesel oil could be ameliorated with inoculation of bacterial strains, which are highly adapted to various farming systems. The maize crop could be successively grown on polluted soil which are contaminated with poly aromatic hydrocarbons. The small holding farming families will be greatly benefited to improve their crop yields. © 2021 Friends Science Publishers