THE domestication of rice dates back to antiquity. From its Asian homeland rice now cultivated in 118 countries and plays a variety of roles that are related to important aspects of food security as well as economic development. In the last three decades in India 632 varieties were developed and released for commercial cultivation by the Central and State Variety Release Committees for different ecosystems (Mangal Rai, 2004). Parameters like physical characteristics, cooking quality and nutrient composition are to be considered as important to decide grain quality which may affect domestic consumption and international trade of rice. Hence a comparative study was undertaken to analyze the parameters in the rice varieties AO-9 and Byranellu suppliedby MRS, UAS, Bangalore.
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