Description:
Inbred parents: B77, CM103, CIMMYT11ES, Hi28, Hi34, Hi53, Hi54, Hi56, Hi61, ICAL29, ICAL36, ICAL219, ICAL220 and INV534. Later evaluations showed resistance of B77 to be racially specific; other inbreds had racially non-specific tolerance. Population advanced by recurrent mass selection for 6 cycles in Hawaii. Newly identified or improved inbreds with high blight tolerance were crossed with this synthetic in 2006. Inbreds in 2nd series included new versions of Hi28, Hi34, Hi53, Hi56 together with Hi40, Hi48, Hi49, Hi51, Hi52, Hi57, Hi58, Hi61. Population advanced for 2 more cycles under blight infections prior to release.