Vladimir Varieties of Spring Triticale - Valuable Starting Material for Breeding

Abstract

Spring hexaploid triticale is a promising grain crop for fodder production. The increase of sown areas under the crop is inseparably connected with the creation of new high-yielding stress-resistant varieties. At present, the most effective method of breeding the crop is classical intraspecific hybridization using as a parental component of early developed released varieties of local breeding. In the Central region of the Russian Federation, spring triticale varieties of Vladimir selection are of great breeding value. The purpose of the research is to conduct a comprehensive evaluation of Vladimir varieties of spring triticale on productivity, thousand seed weight, ear productivity, to obtain hybrid and breeding material on the basis of the identified best varieties. For the objective evaluation of varieties, we calculated adaptability parameters: intensity index (coefficient) and stability index. As a result of the research, it was found that Vladimir selection forms are valuable source material for breeding new varieties for performance, disease resistance and plasticity. Promising source material for breeding for precocity — plastic varieties Slovo, Dorofeya, Rossika, performance — medium-ripening varieties Seltso, Dobroe, Grebeshok, Bolero, medium-late Kvadro, seed size: Normann, Karmen, Dobroe, Kvadro. Using the identified varieties as parental components, new hybrid material was created. The efficiency of selection of high-yielding spring triticale plants from hybrid populations F3-F4amounted to 29-47%.