In-vitro Effect of Auto-Vehicular Exhaust Emission on Seed Germination and Seedling Growth of Leguminous Plants from Different Localities of Karachi

Asma Hanif, Huda Shahid, Zafar Iqbal

Abstract


Automobile exhaust emissions are a dominant feature of an urban environment and are widely believed to have detrimental effects on plants. The impact of exhaust emission from automobile examined on four roadside species namely, Caesalpinia pulcherrima (L.) Sw., Sesbania grandiflora (L.) Poiret, Senna alata (L.) Roxb. and Albizia lebbeck (L.) Bth., was assessed with respect to seed germination and seedling growth. Automobile emission showed significant effects on reducing seedling growth parameters of C. pulcherrima, S. grandiflora, S. alata and A. lebbeck growing in the polluted site of different localities of Karachi. Drastic effect in decrease of seed germination was showed by the seeds collected from the Tariq road followed by Bahadurabad and Khalid Bin Waleed road. Whereas, Gulshan-e-Ali showed maximum growth, leaf area, fresh and dry weight of leaf and root as compared to Karachi University Campus (unpolluted area).

Keywords


Pollution; Automobile exhaust; Emissions; Urban areas; Germination; Roadside trees

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References


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DOI: https://doi.org/10.33687/planthealth.04.01.5978

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