Using three diallel crosses among populations of butternut squash, with different levels of inbreeding (S0 x S0), (S1 x S1) y (S2 x S2), two hybrids and two inbred lines of butternut squash were selected, for its high dry matter content in fruit and plant production. Seven hybrid populations were formed from the selected genotypes. They are genetically stabilized by fraternal crossing and were evaluated in different environments of Valle del Cauca. Population one was selected, which presented a plant production between 29 to 32 kg; average fruit weight between 5 -6 kg; 4-5 fruit per plant; dry matter in fruit among 24-26%; globular form ribbed bright green external color and deep yellow to orange flesh color (12 to 14 Roche Fan). This population was registered in Institute Colombian Agropecuario ICA, under the name UNAPAL-Abanico-75.