DEVELOPMENT OF MAIZE GENOTYPES (Zea mays L.) BY USING IN VIVO DOUBLED HAPLOID TECHNIQUE

Doubled haploid technology has become an increasingly popular and important tool for developing new maize lines (Zea mays L.) breeding. Conventional breeding requires repeated self-pollination about six to ten generations obtain homozygous inbred lines. Completely can be produced in only two by using doubled technology. In vivo induction of the maternal method was used production 32 different donors pollinated with inducer line Stock6. Haploid seeds were identified visually dominant anthocyanin color marker genes R1-nj. rates (HIR) chromosome doubling rate (CDR) determined. 488 putative obtained. The average calculated as 2.0%, 52,3%. Results this study 20 developed.