The present study was planned to explore the relationship between soil chemistry with bacterial population of Bt and non-Bt cotton and their phenotypic and molecular characteristics. The pre-plant soil and rhizospheres of Bt and non-Bt cotton were collected and analyzed for some soil parameters and bacterial population. The bacterial isolates were analyzed for their morphological, biochemical, and molecular characteristics. Bacterial population showed a significant (p < 0.05) positive correlation with clay content, electrical conductivity, organic matter, total nitrogen, and available phosphorus and potassium negative with correlation with pH. Bt cotton showed a non-significant effect on the soil parameters, significant decrease in bacterial population, change in the morphological and biochemical characteristics of rhizobacteria and replacement of four bacterial species with five new ones suggests the potential effect of Bt cotton on its rhizoflora. The rhizosphere of non-Bt cotton cultivated in the fertile agriculture field was found to be the best for bacterial growth.

本研究计划探索土壤化学与Bt和非Bt棉细菌种群之间的关系以及它们的表型和分子特性。收集Bt和非Bt棉花的种植前土壤和根际，并分析一些土壤参数和细菌数量。分析了细菌分离物的形态，生化和分子特征。细菌种群显示显着（p <0.05）与粘土含量，电导率，有机质，总氮，有效磷和钾呈正相关，与pH呈负相关。Bt棉花对土壤参数无显着影响，细菌数量显着减少，根际细菌的形态和生化特性发生变化，并用5个新种替代4种细菌，这表明Bt棉花对其根际菌群具有潜在的影响。发现在肥沃的农业领域种植的非Bt棉花的根际最适合细菌生长。