DIALLEL ANALYSIS OF PRODUCTIVE TILLER NUMBER IN MODERN SPRING BARLEY VARIETIES
Journal Title: Наукові доповіді НУБіП України - Year 2017, Vol 5, Issue 5
Abstract
The paper covers results of plant breeding and genetic studies on hybrids derived from complete (7 x 7) diallel scheme of crossing modern barley varieties (Virazh, Talisman Myronivskyi, Komandor, Explorer, KWS Aliciana, KWS Bambina) by "productive tiller number" in environments of the V. M. Remeslo Myronivka Institute of Wheat of NAAS (Central Forest-steppe of Ukraine) in 2014-2016. It was revealed that components of genetic variation and regression graphical analysis indicate the prevalence of overdomination in genetic control of productive tiller number which is supplemented in some years by strong epistasis. Taking into account the prevalence of dominant effects of genes and overdomination both in the experiment as a whole and in the loci, as well as the direction of dominance towards the increase of the trait and its uncertainty in some years, the "hard" selection for this trait should be practiced in later hybrid generations. In combination breeding the varieties Talisman Myronivskyi and Explorer should be used as genetic sources of productive tiller number.
Authors and Affiliations
V. M. H Hudzenko
Keywords
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