EN
The androgenetic response of several selected male sterilitymaintainer genotypes of triticale was investigated. Androgenesis induction was obtained in all cultivars, but a large genotypic variation in green plant regeneration was observed. The number of regenerated triticale plants varied from 0.1 to 4.7 green plants per spike, depending on genotype. Spontaneous doubling of chromosomes varied from 14 to 60 % for particular genotypes and, on average, reached the value of 34 % for all genotypes. Fertile DH lines obtained in this study will find practical application in the development of triticale male sterile lines that are desirable in hybrid breeding.