Central Indian States, including Madhya Pradesh, which account for nearly one-fifth of wheat production in the country, would be severely hit by climate change, leading to a drop in yield by 2050. Researchers at the Karnal-based Indian Institute of Wheat and Barley Research (IIWBR), which is a constituent lab of the Indian Council of Agricultural Research, found that the other worst-hit States would be Jharkhand, Chhattisgarh, Odisha and Assam. Wheat-growing regions in these States cover 6.38 million hectares, and accounted for 18.56 million tonnes in 2016-17.