Induction line RWS descends from haploid induction line
WS14 (LASHERMES and BECKERT, 1988) and induction synthetic
KEMS (SHATSKAYA et al., 1994). Reciprocal crosses between these
inducers were advanced by selfing to generation F5, and 65 F5
plants of KEMS × WS14 and 54 F5 plants of WS14 × KEMS were
evaluated for haploid induction ability. Line RWS (R = “Russian”
inducer KEMS, WS = line WS14) was derived from the best of the
former 65 F5 plants.