STUDY ON CYTOGENETICS AND CHARACTERS OF F_1 HYBRIDS BY CROSSING OCTOPLOID TRITICALE AND WHEAT THE EFFECT OF GAMETOCIDAL CHROMOSOME 2C DERIVED FROM AEGILOPS CYLINDRYCA ON MEIOSIS AND MITOSIS OF POLLEN GRAINS OF TRITICALE Genetic Mechanism of the Occurrence of Salt-tolerant Variant of Octoploid Triticale Under Tissue and Cell Culture Studies on the Relationship between the Range of Seeding Dates and the Yield Stability of Some New Octoploid Triticale cultivars The Transfer of Dwarfing Gene Rht12 from Common Wheat into Octoploid Triticale and the Gene Effect on Plant Height,Tiller Ability and Seed Plumpness of Triticale Meiotic Analysis of the Regenerated Plants Derived from a Young Spike of Octoploid Triticale ×Secale cereale F1 Hybrid