Chromium induced morphological and biochemical responses of salvinia molesta mitchell

The experiments were conducted to study the morphological and biochemical responses of Salvinia molesta Mitchell to different concentrations of Chromium exposed for 12 days. The data on Morphological and Biochemical parameters were recorded at the interval of 4 days. Test plant showed visible symptoms such as chlorosis and withering of roots at higher concentrations of Chromium however, the normal growth was observed at lower concentration of 0.25 and 0.50 ppm. Total chlorophyll, carbohydrate and protein content increased at lower concentration and decreased at higher concentration compared to control. Proline accumulation in test plants and directly proportional to the concentration of Chromium which was due to the stress induced by Chromium. The toxicity of Chromium was found to be directly proportional to its concentration and duration of exposure.