Chromium is a toxic heavy metal. Plants, animals and human metabolic processes are disturbed due to higher levels of chromium. PGPR are involved in seed germination, growth improvement, metabolic process and in most of the physiological processes of plants. Press mud in soil provides substrate to the microbes. PGPR can convert the more toxic form of Cr (VI) into less toxic form Cr (III). This study was conducted to find out the reduction potential of pre-isolated rhizobacteria and their role in strengthening of plant growth and physiological attributes. Soil collected from the research area was spiked with 20 mg kg-1 of Cr (VI) by using potassium dichromate (K₂Cr₂O₇) salt before sowing. Results revealed that Cr (VI) significantly suppressed the shoot length, root length and photosynthetic rate of okra up to 19, 37 and 31%, respectively. However, inoculation decreases the uptake of Cr (VI) in root and shoot up to 37 and 31% and by press mud 33 and 20%, respectively. Combined application of inoculation and press mud significantly recovered the negative impact of chromium and plant growth was almost at par compared with contaminated treatment without inoculation.

铬是有毒的重金属。由于铬含量较高，植物，动物和人类的代谢过程受到干扰。PGPR参与种子的发芽，生长改善，代谢过程以及植物的大多数生理过程。将泥浆压入土壤为微生物提供了底物。PGPR可以将毒性较高的六价铬（VI）转化为毒性较低的六价铬（III）。进行该研究以发现预先分离的根际细菌的还原潜力及其在增强植物生长和生理特性中的作用。用重铬酸钾（K ₂ Cr ₂ O ₇）向研究区收集的土壤中掺入20 mg kg-1的Cr（VI）。）播前撒盐。结果表明，Cr（VI）分别显着抑制了黄秋葵的芽长，根长和光合速率，分别高达19％，37％和31％。但是，接种会降低根部和根部对Cr（VI）的吸收，分别高达37％和31％，压榨泥分别为33％和20％。接种和压泥的组合施用显着地恢复了铬的负面影响，与未经接种的污染处理相比，植物的生长几乎相同。