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PJB-2011-385
ECOPHYSIOLOGICAL RESPONSES OF RICE (ORYZA SATIVA L.) TO HEXAVALENT CHROMIUM
Abstract
The effects of hexavalent chromium (Cr) were studied in rice plants by applying its different concentrations ranging from 50-500 mg/kg of soil. Cr significantly altered growth of rice plants and reduced dry weights of shoot (7-58%) and roots (7-73%) in different treatments. Cr impact was remarkably high on photosynthetic rate (21-62%), transpiration rate (5-59%), and stomatal conductance (21-66%). Chlorophyll a and b and carotenoid contents were also reduced in Cr-treatment plants by 17-47%
