Effect of Heavy Metals Zn and Cu on Growth Parameters of Lycopersicum esculentum

Background: One of the most discussed topics in the modern era is environmental degradation. One of the primary effects of industrialization and urbanization is the overproduction of wastes in all forms, some of which are totally contaminated with heavy metals and dangerous chemicals. The accumulation of heavy metals in agricultural soil, which may have some extremely negative impacts on the soil, plants and human beings, is one of the world’s major challenges. The main purpose of this research was to investigate the buildup and distribution of heavy metals zinc (Zn) and copper (Cu) and their impact on several physiological and growth parameters of the tomato plant (Lycopersicum esculentum). Methods: The tomato crop was cultivated in varying concentrations of Zn (50, 70 and 90 mg/kg soil) and Cu (40, 60 and 75 mg/kg soil) in relation to their root length, number of leaves and other fundamental growth and physiology. Result: It was observed that 0, 18, 36 and 54 days after sowing (DAS) monitored the adverse effect of metal on physiological parameters. The concentration of heavy metals in the shoots, leaves, fruits and roots of the plants was measured using the atomic absorption spectroscopy technique. The growth characteristics, chlorophyll contents and other physiological parameters of plants were found to be negatively impacted by a rise in the concentration of both heavy metals.