A roving survey was conducted during Kharif 2017 and 2018 in five major rice growing ecosystems viz., Kabini and Kaveri, Hilly upland, Thungabhadra and Upper Krishna, Thunga and Bhadra and Coastal belts to know the incidence and severity of grain discolouration in Karnataka. Grain discolouration was recorded in all the samples collected from major rice growing ecosystems. | Status and distribution of rice grain discolouration in different ecosystems in Karnataka India