Original Research Article
Year: 2020 | Month: March | Volume: 7 | Issue: 3 | Pages: 321-347
Germination, Growth, Physiological and Biochemical Response of Pigeon Pea (Cajanus cajan) Under Varying Concentrations of Copper (Cu), Lead (Pb), Manganese (Mn) and Barium (Ba)
N. Gandhi1,2, J. Sridhar1, A. Pallavi1, K. Ashwini1, K. Vasavi1, M. Ravali1, L. Naveen1, V. Shailaja1, T. Supriya1, B. Kondaiah1, K. Maneesha1, U. Soumya1, K. Kranthi1
1Green Fields Institute of Agriculture Research and Training (SinghaniaUniversity) Ibrahimpatnam, Rangareddy, Telangana, India.
2Center for Environment and Climate Change, School of Environmental Sciences, Jawaharlal Nehru Institute of Advanced Studies, Hyderabad, Telangana, India.
Corresponding Author: N. Gandhi
ABSTRACT
With the extension of the total populace, the ecological contamination and poisonous quality by chemicals raises concern. A fast industrialization and urbanization procedure has prompted the consolidation of pollutants. For example pesticides, oil/petroleum based commodities, acids and heavy metals in the common assets like soil, water and air are corrupting the nature of the earth, and also influencing plants and creatures. Heavy metals including lead, manganese, barium and copper are also significant ecological poisons in this scenario leading to lethal impacts of plants. Hence, diminishing profitability and alarming hazardous danger to the agro-biological system. These changes act as stress to plants influencing the plant physiology. Considering the worries in the eco system, we have conducted a series of experiments to optimize the impacts of Heavy metals on seeds of Pigeon pea (Cajanus cajan) under varying concentrations of copper (Cu), lead (Pb), manganese (Mn) and barium (Ba) which influence the germination and other physiological procedures. The impact of selected heavy metals on seeds of Pigeon pea (Cajanus cajan) were observed by measuring percentage of germination, root length, shoot length, fresh weight, dry weight, number of leaves and branches respectively for various concentrations at different time intervals viz., 0,5,10,15,20,25 and 30th days. In spite of the fact that reports exists on components by which the heavy metals go about as pressure and how plants have figured out how to survive. The results of present investigations can be concluded that copper (Cu) & lead (Pb) are the most effective pollutants and shown adverse effects on physiological and biochemical properties of Pigeon pea (Cajanus cajan) when compared with other heavy metals. The results also indicated that as the number of days increases the yellowing of leaves and fall down of leaves were observed in all treatments. The extent of this exploration in future stays in revealing the flagging systems of germinating seeds in response to the heavy metal dosage.
Keywords: Heavy metal stress, Physiology, Biochemical response, Pigeon pea (Cajanus cajan), Growth analysis.
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