Abstract

A Studies were made to assess the impact of copper (Cu) on seed germination, seedling growth (shoot and root length), fresh weight, total chlorophyll content and Seedling Vigor Index (SVI) of wheat, maize and Sweet Pea at various concentration (5, 25, 50, 75 and 100 ppm) for 21days in laboratory conditions. It was found that lower concentration of copper (5 and 25 ppm) could help in growth and survival of these plant species while higher concentration (50, 75 and 100 ppm) adversely affected these edgermination seedling growth and total chlorophyll content following 21day Cuex posure.The order of SVI was recorded to beas sweet pea>maize>wheat. The exposure of Cu on these plants, total chlorophyll, total amylase,total protein and total sugar of seedlings decreased under laboratory conditions. However, the catalase and peroxidase activities were increased at all the concentration. Physiological and biochemical per turbations of these plants seedling are alter eddue to Cutoxicity.

Keywords: Chlorophyll, Fresh weight, Copper, Toxicity, Biochemical, Physiological