DEVELOPMENT OF SPRING TRITICALE VARIETY MODEL

Abstract

The model of spring triticale variety adapted to the conditions of the forest-steppe zone of Western Siberia was developed based on empirical data obtained during breeding. The work was carried out using the results of the analysis of the relationships between the indexes of plant grains mass and morphobiological characteristics of the plant. According to the results of breeding studies of spring triticale in 2009–2016, there was created computer database containing information on productivity, product quality, resistance to diseases, pests and other characteristics. The materials for breeding were intervarietal hybrids of hexaploid spring triticale obtained by diallel crossings of four spring triticale varieties from the world collection of the N.I. Vavilov Research Institute of Plant Industry (Sokol Kharkovskiy, Ukro, Gabo, K-3881) as well as by crossing of these varieties with Sirs 57– a winter triticale variety bred at Siberian Research Institute of Plant Production and Breeding – branch of IC&G SB RAS. A conceptual scheme of the spring triticale variety model was elaborated, revealing a logical sequence of operations required to build a variety model version. We used the practical data to correct the parameters of the model variety that allowed us to determine the limits of variability of the potential yield, provided by the climate resources in a specific soil-climatic zone. The following main parameters of spring triticale variety model were determined: the number of grains of the main ear is 50–60 pieces, the length of the ear is 11–13 cm; weight of 1000 grains is 60 g, grain yield is 50 c/ha.