It would depend on the type of mutants you are trying to recover.

EMS is generally considered to be an effective chemical mutagen - producing leaky mutants by base pair substitutions (G:C to A:T). Genetic mutations by definition are heritable and should be carried through to at least some of the offspring (possibly in a recessive state) the work will be in recovering homozygous mutants (by selfing the M1 population). After screening and selecting the favorable mutations you can incorporate them into a breeding program to transfer the mutation into a commercial line.

Oryzalin is another highly effective chemical mutagen for inducing polyploidy. If homogeneous polyploids are recovered they too will carry that trait through to offspring depending on the pollinizer.

Dear Joseph, Thanks.

1.Ethyl methane sulphonate (EMS), 1-methyl-1-nitrosourea and 1-ethyl-1-nitrosourea

2. 5-bromouracil and maleic hydrazide

EMS

EMS