Evaluation of inbred lines to develop hybrid is a key in a hybrid program. Inbred lines are extracted from the base population. During the process, extraction of inbred lines requires time and it is therefore interesting that during the extraction process, useful information appears for breeders, whether it is valuable or not. In response to the described useful information that appears for breeders, we formulate the concepts to estimate the value of the base population by genetic parameters. Using a single multi-allelic locus model, in addition to mean and variance, an inbreeding population derived by selfing an equilibrium one has other parameters similar to those of an F 2 from a line cross useful for a hybrid program. The theory and estimation procedure are discussed.
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