The phenotype variability of inbred lines can be interpreted as a fundamental factor in achieving a high heterosis with the hybrids in which those inbred lines are included. The inbred lines are characterized by the presence of less developed plants, shorter, with a lower yielding capacity, reduced growing rhythm, lower adapting capacity as a result of inbreeding process. By inbreeding is not always produced the degeneration yet the segregation and expression of the negative or unfavourable genes. In such conditions, the selection becomes more difficult. Our research has identified the way these characters can be avoided.

maize; hybrids; features; inbred lines

Presentation: oral