Understanding leaf Biochemical traits for Sunflower (Helianthus annuus L.) Cultivars grown in chromium stressed Environment
By: Muhammad Imran Atta, Abdul Wahid, Muhammad Nawaz, Muhammad Nauman Ahmad, Sheikh Saeed Ahmad , Muhammad Ishtiaq
Key Words: Cr6+, effect, growth, physiology, biomass.
Int. J. Biosci. 8(2), 195-202, February 2016.
Environmental pollution is big curse for plants, animals and other living organisms. Being atmospheric pollutant, different levels of Cr6+ (50-500mg/kg) were applied to sunflower plants to determine its toxic effects. It was found that there was imbalanced distribution of leaf nutrients. XRF studies for various elements revealed alteration in leaf appearance due to nutritional deficiency. Leaf protein was reduced and proline increased pretentiously (p≤0.05) along Cr concentration. Viability of Cr enriched plants strongly showed the environmental protective role of proline. Present study mainly expresses chromium metal toxicity for carbon and nitrogen metabolism predicting poor growth, biomass and yield attributes in Cr treated plants.