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2015 | 16 | 125-158
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Chromium induced changes in Soybean (Glycine max L.) metabolism

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Pulses play an important role in Indian agriculture. Among the pulses, soybean (Glycine max. L) occupies a unique place by becoming the largest source of vegetable oil and protein. It is widely cultivated in India and occupy 5th largest production of soybean in the world. Industrialization and population explosion has caused a serious problem of pollution in the environment in all possible ways. As a result, most of the water resources are getting polluted by receiving large quantity of sewages and industrial wastewaters with heavy metals. In some places, these polluted water is being used for irrigation due to scarcity for good water. The continuous use of these wastewater containing heavy metals degraded the soil quality and reduced the growth and yield performance of agricultural crops. Aresenic, cadmium, chromium, cobalt, copper, lead, mercury, nickel, uranium, vanadium and zinc are the some of the important heavy metals found in our environment. Among the heavy metals, chromium merits a special reference for its toxic potential. It is released from the industries such as electroplating, leather tanning, textile printing and metal finishing. It is one of the main constitutions of tannery effluent. Presence of excess amount of chromium in the wastewater affect the plant growth and development when it is used for irrigation. So, Laboratory study was carried to investigate the irrigational impact of various concentrations of Cr (5, 10, 25, 50 100, 200 and 300 µg/l) on changes in morphological (germination percentage, root length, shoot length, fresh weight and dry weight), photosynthetic pigments (chlorophyll a, chlorophyll b, total chlorophyll, carotenoid) biomolecules (aminoacid, protein, sugar, proline) and antioxidant enzymatic activities (catalase, peroxidase, polyphenol oxidase and super oxide dismutase) were estimated. The accumulation of chromium in soybean seedlings were estimated and they were correlated with the above mentioned parameters.
Physical description
  • Department of Botany, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu, India
  • Department of Botany, A.V.C. College (Autonomous), Mayiladuthurai, Tamil Nadu, India
  • Department of Botany, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu, India
  • Department of Botany, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu, India
  • Department of Botany, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu, India
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