Resistance of old winter bread wheat landraces to tan spot by N. V. Mironenko, N. M. Kovalenko, O. A. Baranova, O. P. Mitrofanova

“…In the process of wheat breeding for resistance to tan spot caused by the fungus Pyrenophora tritici-repentis (Died.) Drechs. (abbr. Ptr), selection is carried out against the dominant allele of Tsn1, the gene of sensitivity to the toxin Ptr ToxA, which induces necrosis and represents the main pathogenicity factor of Ptr controlled by the ToxA gene. …”
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