This thesis aimed to determine the hybrid combination - planting density - number of plants per hole to achieve the highest grain yield in winter planting in the Peruvian coast. It was carried out between June 2003 and January 2004, in the district of La Molina, Lima Province - Lima, located 76® 57 '00 "longitude, 12® 05' 06" latitude and altitude of 243.7 m We worked six experimental hybrids triple and a witness hybrid Agraceras the effect of planting density and number of plant performance hit hard winter yellow corn on the Peruvian coast was assessed; as well as other complementary vegetative crop characteristics. the statistical design of randomized complete block factorial arrangement 7x2x2 with 28 treatments and 3 replicates per treatment and the results were analyzed using analysis of variance, Duncan test and coefficient of variability was used. The experimental soil was loam s...