Evaluation on feasibility of seed is carried out at the breeding level in Nagekeo Regency during 1 ( one ) year (2015 ) and the result of F1 is evaluated in the agro-ecosystem of wet rice field ( Nagekeo District ), dry land ( Kupang district ) and land of Ahuklean (Malaka district ). The results shows that: a) the average productivity of the F1 Bima 20 URI seeds is 3,200 kg/ha, however, if the price of seed was IDR 27,500/kg, the breeder will get a profit of IDR 20,496,000. b) Corn productivity of the F1 Bima 20 URI which was planted in agro-ecosystem of irrigated wet rice field, dry land and land of ahulean respectively 6.75 tons/ha, 5 tons/ha and 3 ton/ha with a profit of each respectively of IDR 22,220.00 and IDR 15,220,000, IDR 8,850.00; c) The value of R/C ratio of the seed breeder of the F1 Bima URI 20 was of 2.63 and the value of R/C ratio of the hybrid Bima URI 20 in various agroecosystems of 4.65, 3.18 and 2.81. Thus, the seeding and development of the hybrid corn Bima URI 20 in NTT is reasonably to be carried out.