Tolerance of Albizia lebbeck (L) Benth to different levels of lead in natural field conditions | [Pakistan Journal of Botany • 2011]

Author(s):

1. Zia ur Rehman Farooqi: Department of Botany, University of Karachi, Karachi, 75270, Pakistan

2. Muhammad Zafar Iqbal: Department of Botany, University of Karachi, Karachi, 75270, Pakistan

3. Muhammad Kabir: Department of Botany, University of Karachi, Karachi, 75270, Pakistan

4. Muhammad Shafiq: Department of Botany, University of Karachi, Karachi, 75270, Pakistan

Abstract:

Lead produced significant effects on different growth parameters of Albizia lebbeck (L.) Benth such as root, shoot, seedling length, leaf area, plant circumference and seedling dry biomass in natural field conditions. Seedling growth performance of A. lebbeck showed low level of tolerance with increasing concentrations of lead treatments from 25 to 125μmol/L. Lead treatments at 25 to 125μmol/L produced significant effect on shoot, root and seedling length of A. lebbeck. Number of leaves, leaf area and circumference were significantly (p<0.05) reduced at all concentrations of lead treatments. Seedling dry biomass was significantly reduced at 100 and 125μmol/L treatment of lead. Lead treatment at 25μmol/L showed high percentage of tolerance indices while by increasing lead levels to 125μmol/L, percentage of tolerance indices was low.

Page(s): 445-452

DOI: DOI not available

Published: Journal: Pakistan Journal of Botany, Volume: 43, Issue: 1, Year: 2011

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