Rice (Oryza sativa L.) is the foremost important food crop in the world especially in Asiatic Continent. It is ranking second to the wheat among the most cultivated cereals in the world. Rice has widest germplasm collection than other cereal crops. It has to be made productive through several achievements in rice breeding programme, especially in sustainable food grain production with quality concern and it is undoubtedly the most important cereal of the world providing 21 per cent of global human per capita energy and 15 per cent of per capita protein. The mature rice grain, after removal of the hull (husk), again consists of the embryo and the starchy endosperm, surrounded by the seed coat, comprised of remnant tissues of testa and pericarp. | Genetic exploration on crude protein estimation in traditional rice landraces of southern India