Effects of increased contents of cadmium (Cd) upon the content of chloroplast pigments, total nitrogen, crude proteins and total carbohydrate at rice (Oryza sativa L.)
Keywords:rice, cadmium, chloroplast pigments, crude proteins, total carbohydrates, toxic effect
Heavy metals are major environmental pollutants and when present in high concentration in soil show potential toxic effects on growth metabolism in plants. As our knowledge is insufficient to explain the mechanism of cadmium toxicity and more specially the interaction of these heavy metal with the key biochemical processes in growing rise plants, in the present study attempts have been made to evaluate the effects of increasing levels of cadmium toxicity on growth of rise plants. The rise plants have been cultivated in experimental conditions and treated with different cadmium concentrations (0,1; 0,2; 0,4 and 0,8 mg/kg soil). Parallel with treated variants has been cultivated and the control group of plants treated with the same volume water. The content of chloroplast pigments, total nitrogen, crude proteins ant total carbohydrates at rise (Oryza sativa L.) cultivar biser-2 have been investigated during different phases of vegetation. The obtained results showed tolerance between rise plants and used highest cadmium concentrations were toxic effects were lower.
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Copyright (c) 2005 Lenka Cvetanovska, Danica Andreevska, Suzana Kratovalieva
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