Генетичні основи селекції на розширення різновиднісного різноманіття ячменю ярого

Abstract

Aims. The establishment of genetical peculiarities and efficiency of the application of the traits in rare variatal forms during breeding and widening of a varietal diversity in spring barley on its basis. Methods. Genetical-breeding methods are used: they are field (diallel crossing, phenology, heretability of plant traits); genetical-statistical (dispersion, variegated, correlation, genetical). Results. Some distinctions as to morpho-biological peculiarities, variability, correlation, inheritance, components of genetical dispersion, heritability, combining ability and a breeding value of traits in the forms of rarely- and widely used varieties of spring barley are established. The varietal diversity of the sources of valuable traits is widened. Conclusions. The genetical peculiarities for the creation of a new genetical diversity of various varietal forms of spring barley are established.

Key words: spring barley, variety, diallel crosses, genetical specific, breeding.