germination changes of helianthns annuus l. under tannery effluent stress

Research Article
Mythili,K*. and Karthikeyan,B
Tannery effluents Leather industry Sunflower Seed germination

Wastewater from leather processing, a major industry that produces upto enormous waste water. The wastewater contains valuable nutrients, but also contaminants, such as salts and heavy metals, that might affect soil processes and crop production. The present investigated, effluent was examined for its chemical constituents and the various concentrations on the seed germination, seedling growth, chlorophyll, carbohydrates and protein content of sunflower (Helianthus annuus L.). The results low concentration (20%) of the tannery waste water promoted the germination, percentage growth, fresh dry weight of sunflower seedlings, whereas the higher concentration (above 20%) reduce the above all the parameters like percentage of germination, chlorophyll, carbohydrate and protein contents of sunflower showed decreasing trend with increasing effluent concentrations. The observation also indicates organ specific differences in the growth of seedlings in presence of different concentrations (20, 40, 60, 80, and 100%) of tannery effluent. However, the tannery effluents due to presence of chemicals are not suitable for inclusion in irrigation system.