Bangladesh is a large deltaic plain formed under the influence of three mighty rivers –Ganges, Brahmaputra and Meghna with its flat topography, abundant water and sub tropical climate, constitutes an excellent habitat for the rice plant. Rice, as such, evolved as the staple food of the people of the country and historically associated with their culture, rites and rituals. With time, as the population increased at a rapid pace, the gap between rice production and food requirement for the millions widened. To feed the increasing population through radical change in rice production, replacement of the low-yielding traditional varieties and age old production practices of rice by high-yielding varieties and improved production technologies became essential. Rice research in this part of the sub-continent started in 1910 that got momentum in mid 60s.