Plant growth regulators a key factors in wheat - maize crosses for haploid production in wheat.

The paper highlights the role and importance of plant growth regulators (PGR) application before or post pollination with regard to embryo formation and haploid plant regeneration in wheat-maize hybridization. The efficiency of some PGR combinations (doses, procedures, time of application) and genetic influence on some parameters characterizing the efficiency of haploid production at NARDI Fundulea are briefly described. Taking into account the decreasing efficiency, in the last period, the need for new and different variants of PGR are discussed.