Abstract:
Heavy metal pollution has become a global environmental threat. Environmental pollution is increased due to industrialization and urbanization. Industrial toxic wastes are abundant with heavy metals that are dangerous for plants as well as other entities. Among the heavy metals, cadmium is non-essential, and its toxicity causes the over-production of reactive oxygen species (ROS) and results in damage to plant membranes and also reduces plant uptake of Fe and Zn, resulting in leaf chlorosis. Magnesium sulphate gives a good source of both magnesium and sulfur, hence helping plants to reduce stress through their supportive effects. Supplemental calcium sulphate significantly improved growth and physiological variables affected by heavy metal stress. The Melilotus indicus L. (sinji) has a lot of importance because of its role as a nectar source for bees, fodder, as a soil improver and used in traditional medicine. The objective of the study is to analyze the effect of magnesium sulphate and calcium sulphate on morpho-anatomical parameters of Melilotus indicus L. with different concentrations of Cadmium chloride. The plants were treated with three levels of heavy metal solutions such as 30µM/L, 60µM/L and 90 µM/L respectively for 8 weeks. In these treatments plants were further divided into two groups in which the first group of plants were treated with only sole metal treatments while others were treated with different concentrations of Cadmium chloride along with magnesium sulphate and gypsum. The results of these treatments showed that the increasing level of heavy metals affects the morphology of plants by decreasing shoot length, root length, number of leaves, number of branches, number of nodules, leaf area, fresh weight and dry weight of plant and also developed anatomical changes by decreasing trend in xylem thickness, phloem thickness, leaf lamina thickness, cell area of stem and root stomatal area, stomatal density and dermal cell area in leaves as compared to control group of plants. But the exogenous application of magnesium sulphate and calcium sulphate decreased the harmful effects of heavy metal and revealed the positive responses during the growth of plants.
Page(s):
161-161
DOI:
DOI not available
Published:
Journal: Abstract Book on Global Science Technology and Management Conference, Volume: 0, Issue: 0, Year: 2023
Keywords:
Magnesium sulphate
,
Gypsum
,
Melilotus indicus L
,
Cadmium Toxicity Effects