2. Cross-pollinated plants(maize, Rye, Herm) Special genetic characteristics Heterogeneous population Heterozygous plants Big Inbreeding depression Breeding methods Heterosis(Inbred-line hybrids Seed Multiplication Isolated2. Cross-pollinated plants (maize, Rye, Herm) • Special genetic characteristics Heterogeneous population Heterozygous plants Big Inbreeding depression • Breeding Methods Heterosis (Inbred-line hybrids) Seed Multiplication Isolated