Growth, Yield and Grain Arsenic Concentration of Rice Cultivars under Varying Levels of Soil Arsenic Contamination

Arsenic (As) contamination in groundwater is a severe and widespread problem Bangladesh their exposure cause serious health hazard human history. A pot experiment was conducted the net-house of Department Soil Science, Agricultural University, Mymensingh using fourteen cultivars rice (Summer rice) to evaluate effects varying levels As on growth, yield grain contents. adversely affected tillering, filled grains, straw all cultivars, however, effect varied among cultivars. In control treatment, highest (75.66 g pot-1) observed BR 11 while lowest (8.73 BRRI dhan4. Application 20 ppm soil resulted complete death 11, dhan30, dhan33, dhan34, dhan41, Binadhan-4, Biroy Kalizeera significantly increased concentration for rice. grains grown soils without ranged from 0.06 0.13 dhan32 such values 0.231 with 10 0.743 dhan40 applied soils. Among 14 dhan32, Najirshail appeared be more tolerant contamination.