IR 64 Rice has come up as an irreplaceable option for many Basmati Rice varieties in many parts of the world. Plus, because of its wide adaptation, early maturity and improved quality, it was accepted rapidly in many new areas too. Soon it became a standard for high quality rice and was highly desired for the rice industry. Many valuable genes have been introduced into IR 64 through backcross breeding. It has also been used extensively as a parent in breeding programs, and to develop populations for genetic analysis. The major breakthrough in the development of IR 64 Rice was the combination of high yield and disease resistance with superior grain quality.