Accumulation of Arsenic in Different Parts of Rice Genotypes from Contaminated Field Condition

Abstract

According to recent reports, millions of people across the globe are suffering from
arsenic (As) toxicity. Arsenic is present in different oxidative states in the environment and
enters in the food chain through soil and water. In the agricultural field, irrigation with
arsenic contaminated water, that is, having a higher level of arsenic contamination on the
top soil, which may affects the quality of crop production. The major crop like rice (Oryza
sativa L.) requires a considerable amount of water to complete its lifecycle. Rice plants
potentially accumulate arsenic, particularly inorganic arsenic (iAs) from the field, in
different body parts including grains. A study was conducted to evaluate rice germplasm for
their arsenic content in different plant parts and phosphorus content in grains. Results showed
that in the rice plant highest arsenic was accumulated in the roots and the lowest in the grain.
The arsenic accumulation follows the order of root>shoot> leaf> grain. The results also
revealed that IRRI dhan was quite tolerant to arsenic and Satabdi 1 was susceptible to arsenic
accumulation. Results also showed that rice genotypes bore strong positive association between
total phosphorus percent with arsenic content in grain