H99 is a yellow dent inbred with a white cob.
H99 was selected from the Illinois synthetic RDBDDEI(m)C4 that was formerly called 60C and had a AES maturity of 400-600. The synthetic H99 was selected from was formed by crossing the double-double cross [( CI82B x CI83B)x(CI85B x CI86A)] x [(CI88A x CI90A)x(CI91B x CI93A)] to the inbreds B8, Oh43, Oh45, Oh51A, M14, R160 and R168. Four cycles of mass selection for diplodia stalk rot and northern leaf blight resistance were performed.>/p>