ABSTRACT: The present study was carried out at National Botanical Garden, Dhaka, considered as control site and Motijheel- Sayedabad roadside areas as polluted site to compare the impact of automobile pollution on leaves macro- morphological traits of selected ten plants growingin the polluted areas with those growingin control sites. Leaf morphological characteristics including leaf abnormalities of both young and mature leaves were assessed. Variations in leaf color such as light green, dark green, browning, yellowing and change in the leaf’s shape either normal or deformed were also assessed for both the sites. All the selected plant species showed highly significant (p<0.0001) reduction at polluted site in theirall leaf macro-morphological traits(leaf length, leaf breadth, leaf area, leaf perimeter, specific leaf area and petiole length) when compared with control site. The findings of this study revealed that the automobile pollution stress influenced tree morphological features in the Dhaka city. This study also indicated that plants go through adaptive processes in order to survive in automobile polluted environments.
Keywords: Air pollution, leaf characteristics, urban areas
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