Journal of Applied and Natural Science 3(2):211-218(2011)
Effect of vehicular pollution on Duranta repens L. in Jammu City
Anil K. Raina* and Chand Bala
Department of Environmental Sciences, University of Jammu, Jammu-180006 (J&K), INDIA *Corresponding author. E-mail: firstname.lastname@example.org
Abstract : Experimental potted plants of Duranta repens has been exposed to air pollution at major traffic crossings- Amphalla chowk, Dogra chowk, Bikram chowk, Satwari chowk of Jammu City and also inside University Campus in the department which has been taken as a reference site. Sets of 10 plants were kept at each site and analyzed for various micro morphological, anatomical and biochemical parameters to assess the changes due to air pollution. Analysis of data revealed that micro-morphological parameters viz. stomatal frequency, epidermal cell frequency increased significantly while others like size of the stomata, epidermal cells and length, breadth ratio of the epidermal cells decreased significantly in plants kept at polluted location. All the anatomical parameters such as thickness of midrib region, midrib adjoining region, spongy tissue, upper epidermis and vascular bundles decreased significantly in exposed plants. Among biochemical parameters chlorophyll b decreases significantly while ascorbic acid increases significantly. Air Pollution Tolerance Index (APTI) has also been calculated and found to increase significantly in plants kept at polluted location which indicate that the Duranta repens serve as sink to air pollutants and can be effectively employed for phyto-monitoring auto exhaust pollution along the road side of the busy traffic ways.
Keywords : Air pollution tolerance index, Anatomical parameters, Biochemical parameters, Duranta repens, Micro-morphological parameters, Vehicular pollution