TY - GEN AU - Maluszynski, M TI - Current options for cereal improvement: Doubled haploids, mutants and heterosis T2 - Advances in agricultural biotechnology SN - 0792300645 U1 - 633.1042 PY - 1989/// CY - Dordrecht PB - Kluwer Academic pub. KW - AGRICULTURE KW - CEREAL IMPROVEMENT KW - CEREALS KW - FIELD CROPS KW - MUTATION BREEDING ER -