| Popis: |
Interaction of chromium (Cr) metal ions with sodium (Na) and calcium (Ca) and their effect on the different plant enzymes in spinach were evaluated in a glass house experiment. Multi-metal toxicity hampers the crop's growth and affects the uptake kinetics of minerals and other substances from root to edible part. In this experiment, three levels of Cr (0, 50 and 100 mg/kg), Na levels (0, 40, 80 mM), and Ca levels (0, 2, 4 mM) were applied to Indian vertisol. The spinach crop was grown with recommended agronomic practices. Fully tender leaves were taken to measure stress enzymes (catalase, superoxide dismutase (SOD), peroxidase) of metals; and found to have a significant effect on metal toxicity in spinach crop. Increasing the Cr level up to 100 mg/kg significantly enhanced the activities of catalase, SOD, and peroxidase in spinach; whereas, a lower level of Ca and Na with 50 mg Cr/kg soil significantly (p |
