Abstract
The discharge of contaminated mining and industrial residues has become a major cause of environmental pollution. Seed is highly protective against external metal stresses. But they are highly sensitive during vegetative developmental process. In this study, germination was conducted in Macrotyloma uniflorum var. Madhu, in order to find out the effect of chromium toxicity on germination, growth and biochemical variations. The seeds were germinated in five different concentrations of chromium (25ìM, 50ìM, 100ìM, 150ìM and 200 ìM) solution. The hydroponically grown plants revealed the toxic phenotypic expression (root length, shoot length, seedling length, shoot vigor index, shoot fresh weight, shoot dry weight, root fresh weight and root dry weight) of plant after 3 growth stage (15 d, 30 d and 45 d). Similarly biochemical characteristics as well as antioxidant activities (Chlorophyll, carotenoid, carbohydrate, reducing sugar, catalase, proline content and peroxidase) were studied to see the toxic effect of chromium.
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