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According to a study conducted in 2011–2012, Puccinia recondita populations from Ulyanovsk and Bezenchuk share one geographic range of leaf rust variety formation and dispersal. At the same time, a significant similarity between the structures of the Middle Volga population and of populations from the North Caucasus and Northwestern Russia was shown. Clones… (More)
Having studied genetic control of juvenile resistance to diseases in Aegilops tauschii Coss. samples from the VIR collection, we identified one dominant gene for effective resistance to leaf rust Lr41, seven recessive genes for resistance to septoriosis, and two recessive genes for resistance to dark brown leaf spot blotch.
Using the inoculation of both the intact plants of Triticum L. and leaf segments of the plant in the presence of kinetin with the complex population of Puccinia triticina Erikss, the genotype-dependent induction of resistance by kinetin was found. It was proved that this induction depends on the concrete gene of resistance of the plant and on the genotype… (More)