Plant Soil Environ., 2010, 56(4):194-199 | DOI: 10.17221/147/2009-PSE

Effects of lead on seedling growth of spesia populnea

M. Kabir, M.Z. Iqbal, M. Shafiq, Z.R. Farooqi
Department of Botany, University of Karachi, Karachi, Pakistan

The effects of lead on root, shoot and seedling length, leaf area, number of leaves, plant circumference, seedling dry weight, root/shoot and leaf area ratios of Thespesia populnea L. were determined in greenhouse under natural environmental conditions with and without phytotoxic metal ions at 5, 10, 15, 20, and 25 µmol/l. Lead treatments have a strong influence on the growth and development of T. populnea by reducing significantly (P < 0.05) all the above parameters. Lead treatment at 5-25 µmol/l produced significant (P < 0.05) effects on seedling and root length, plant circumference and seedling dry weight of T. populnea, while lead treatment at 10-25 µmol/l produced significant (P < 0.05) effects on shoot length, number of leaves and leaf area as compared to control. Tolerance in T. populnea seedling at 25 µmol/l of lead treatment was lowest as compared to all other treatments.

Keywords: lead; lead pollution; spesia populnea icity

Published: April 30, 2010  Show citation

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Kabir M, Iqbal MZ, Shafiq M, Farooqi ZR. Effects of lead on seedling growth of spesia populnea. Plant Soil Environ. 2010;56(4):194-199. doi: 10.17221/147/2009-PSE.
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