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A COMPARISON OF GENETIC VARIANCES AND ESTIMATED RESPONSE TO SELECTION BETWEEN THE IRRADIATED AND NON-IRRADIATED GROUPS IN TWO INBRED LINES OF MAIZE
Abstract
Genetic variability is essential in order to make progress in plant or animal breeding. If no genetic variability exists within a species, there is no possibility for improvement by controlled hybridization or selection.The genetic variability presently available in most species is adequate to allow progress from selection for many generations. How- ever, plant breeders and geneticists are becoming concerned about the future possibility of species improvement after selection has utilized most of the available genetic variability. They are also interested in introducing new genetic variability in addition to that currently available in the species.Various methods of inducing genetic variability have been suggested as possible solutions to these problems. Numerous mutagenic agents have been used to induce mutations and increase genetic varia- bility, with the ultimate goal of making the species more productive. This study was designed to evaluate the effectiveness of one mutagenic agent, thermal neutrons, in increasing genetic variability and in pre- senting new possibilities for the improvement of two inbred lines of maize.
Subject Area
Agronomy
Recommended Citation
MUMM, ROBERT FRANKLIN, "A COMPARISON OF GENETIC VARIANCES AND ESTIMATED RESPONSE TO SELECTION BETWEEN THE IRRADIATED AND NON-IRRADIATED GROUPS IN TWO INBRED LINES OF MAIZE" (1967). ETD collection for University of Nebraska-Lincoln. AAI6715831.
https://digitalcommons.unl.edu/dissertations/AAI6715831