EXPANSION OF THE BASIC KNOWLEDGE ON THE INHERITANCE OF CHARACTERS THAT ALLOW THE DEVELOPMENT OF NEW MAIZE BREEDING TECHNIQUES

In order to increase the efficiency of maize hybrid seed production it is necessary achieve a high grain yield reduce costs. This goal requires an expansion basic knowledge inheritance characters in develop new breeding techniques improve experimental materials with hard endosperm (flint). The balanced lethal system allows study relative contribution different chromosome segments vigour due heterozygosity certain while rest genome becomes homocygotic through continuous selfing. this way, these can be transferred inbred lines or tassel size (to pollen production). was transfer heterotic segment by using regulated line (BLS14), crosses and backcrosses, S5 flint derived from two commercial hybrids, ACA 2000 Cóndor closed pedigree, objective for production. analysis variance (ANOVA) principal components (PCA) showed significant improvement both carrying BLS14 line. Key words: maize, segments, yield,