Abstract:
Contamination of soil by lead (Pb) has become one of the major environmental problems worldwide. To investigate the Pb phytotoxicity and tolerance, the green house experiment was carried out with two plants species i.e., Cyamopsis tetragonoloba and Sesamum indicum. For this purpose, the plants weresubjected to six Pb concentrations i.e., 100, 200, 400, 600, 800 and 1000 mg Pb kg-1 soil. Soil without spiked were taken as control. After 12 weeks of experiment, Pb toxicity on growth and biochemical parameters were determined. The results revealed that seed germination and most of the growth parameters were significantly (p<0.05) reduced under high Pb stress. Chlorophyll contents were also decreased with increased Pb concentrations. The toxic effects of Pb in C. tetragonoloba and S. indicum were arranged inorder of 100 < 200 < 400 < 600 < 800 <1000 mg Pb kg-1. Pb tolerance in terms of growth parameters suggested that C. tetragonolobaandS. Indicum has great potential to counteract the deleterious effects of Pb contaminated soil.
Page(s):
126-126
DOI:
DOI not available
Published:
Journal: Abstract Book on Global Science Technology and Management Conference, Volume: 0, Issue: 0, Year: 2023
Keywords:
Lead
,
Cyamopsis tetragonoloba
,
phytotoxicity
,
Soil contamination
,
Sesamum indicum