查看文章

Problem of heavy metal contamination in agricultural lands, in part, is responsible for limiting the crop productivity. In India, Brassica juncea is cultivated as a major oilseed crop. This crop may further be useful in soil reclamation through the process of phytoremediation including phytoextraction of toxic heavy metals such as Zn, Pb, Cd, etc. from the soil. However, selection of B. juncea cultivar (cv.) with high Cd-extraction potential amongst the higher yielding cultivars would be of great importance to reclaim the soil with lesser impact on plant metabolism and hence the yield. Ten such B. juncea cultivars (V₁–V₁₀) commonly grown in India were selected for the present study to determine their Cd extraction potential and degree of resistance to Cd stress. Ten-day-old seedlings of B. juncea cultivars were exposed to various levels of cadmium chloride (0.0–2.0mM) for 72h in hydroponics culture and leaf samples were …