Biochar Application Mitigates the Beryllium Stress via Regulating Vegetative, Physio‐Biochemical Aspects in Pak Choi

Beryllium (Be) is extensively utilized in several industries, particularly in the tanning sector, which poses a significant global environmental issue. The elevated levels of beryllium on cultivable land may present a considerable threat to the agriculture sector and human health. This experiment sought to investigate the potential of biochar in alleviating beryllium toxicity in Pak Choi. The experiment employed three doses of biochar (0%, 2.5%, and 5%) with three concentrations of beryllium (0, 150, and 300 μM), utilizing a completely randomized design (CRD). Beryllium toxicity in pak choi plants reduced the photosynthetic apparatus and caused oxidative damage, leading to decreased plant growth. The incorporation of biochar significantly alleviated the detrimental impacts of beryllium on the physicochemical and biochemical characteristics of pak choi plants subjected to beryllium stress, while markedly enhancing biomass yield. The application of biochar also reduced beryllium levels in plants, perhaps alleviating its entry into the food supply. The application of biochar in beryllium‐contaminated soil may successfully reduce beryllium toxicity in plants.