Identification of rice (Oryza sativa L.) genotypes for aerobic condition under different water regimes

Abstract

Food security in India is challenged by increasing food demand and threatened by declining water availability. Even though rice (Ol)lza sativa L.) is an important grain crop in many parts of India, because of its water use, irrigated rice is being taken out of production in many areas. Savings in irrigation water and increase in water productivity would be possible, if rice is grown under aerobic soil conditions. However, a key component for the success of aerobic systems is developing appropriate cultivars. Keeping this in view, the present investigation was carried out to identify the suitable genotypes for aerobic condition based on physiological and root traits since these traits are essential for imparting tolerance to moisture stress.