In mutation breeding programme the mutant population can be selected in which generation?

In the mutation breeding programme, the mutant population can be selected in the F2 generation.
Mutation breeding refers to the method of using artificial mutagenesis to obtain new biological cultivars, mainly through chemical or radiation mutagenesis.
In order to generate mutants with desirable traits to be bred with other cultivars. Plants created using mutagenesis are sometimes called mutagenic plants or mutagenic seeds.