Toxicity of Cadmium on Mineral Nutrition of Seedlings of Pigeonpea (Cajanus Cajan (L.)Millspaugh) Cultivars

Priyadarshini, B. and Sujatha, B. (2015) Toxicity of Cadmium on Mineral Nutrition of Seedlings of Pigeonpea (Cajanus Cajan (L.)Millspaugh) Cultivars. International Journal of Science and Research, 4 (6). pp. 2077-2090.

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Heavy metals are naturally occurring in the earth‘s crust but anthropogenic and industrial activities have led to drastic environmental pollutions in distinct areas. Cadmium (Cd) toxicity was investigated with different concentrations representing 0, 0.02, 0.04 and 0.06 mM was used in three pigeonpea cultivars (LRG30, LRG41 and ICPL85063) on the changes in activity of mineral composition of roots, shoots and cotyledons. Except for the Cd accumulation in the respective metal-treated seedlings sodium, magnesium, potassium, calcium, iron, copper, zinc, manganese and molybdenum contents of the roots and shoots decreased with increasing concentrations of externally supplied metal ions and registered lower values when compared to their controls. However, the cotyledons of the three pigeonpea cultivars registered higher values when compared to their controls and the retention of various elements in the cotyledons increased with increasing concentration of externally supplied heavy metal ions. The decrease in the contents of different mineral elements was more in cv.LRG41 and ICPL85063 than in LRG30 in response to Cd treatment.

Item Type: Article
Uncontrolled Keywords: Cadmium, Environmental pollution, Mineral composition, Pigeonpea cultivars, Toxicity
Author Affiliation: Department of Botany, Andhra University, Visakhapatnam-530003, A.P., India
Subjects: Crop Improvement > Seed Technology
Divisions: Pigeonpea
Depositing User: Mr B Krishnamurthy
Date Deposited: 02 Sep 2015 07:54
Last Modified: 02 Sep 2015 07:54

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