Resistance of collection wheat variety samples to the causative agent of yellow leaf spot

Yu. S. Kim¹, G. V. Volkova¹, O. Yu. Kremneva¹, E. V. Zuev², D. M. Marchenko³, I. F. Lapochkina^4
1Federal Scientific Center for Biological Plant Protection, Krasnodar, p/o 39, 350039, Russian Federation
²Federal Research Center the Vavilov All-Russian Institute of Plant Genetic Resources (VIR), ul. Bol’shayaMorskaya, 42-44, Sankt-Peterburg, 190000, Russian Federation
³Agrarian Scientific Center “Donskoj”, pos. Nauchnyi gorodok, 3, Zernograd, 347740, Russian Federation
⁴Federal Research Center “Nemchinovka”, ul. Agrokhimikov, 6, pos. Novoivanovskoe, Odintsovskii r-n, Moskovskaya obl., 143026, Russian Federation

Abstract. The investigation aimed to the immunological evaluation of collection wheat variety samples and identification of sources of their resistance to Pyrenophora tritici-repentis in the field against an artificial infectious background. The work was performed in 2017–2019 in the city of Krasnodar. The soil of the experimental site was leached chernozem. An artificial infectious background was created using plant debris affected by yellow spot. The study material was 450 collection samples provided by various scientific institutions of the Russian Federation. Each of them was sown on one running metre three times. The disease development was evaluated in the phase of milky-wax ripeness (Z70-75) on a 9-point scale. The plants affected by less than 15% were considered resistant. In 2017 seven variety samples showed high resistance to yellow spot; in 2018 their number was 27; in 2019 there were no such samples. The number of resistant variety samples was 67, 27, and 1, respectively; the number of moderately resistant variety samples was 30, 30, and two, respectively. The number of moderately susceptible genotypes varied from 49 to 54; the number of susceptible genotypes varied from 53 to 134; the number of highly susceptible genotypes varied from 234 to 284. In general, over the years of the investigation, out of 450 collection variety patterns, one genotype turned out to be resistant to Pyrenophora tritici-repentis (disease development rate reached 15%), and two variety samples were moderately resistant (disease development rate reached 30%). These samples (k-65366, k-65638, k-656630) are useful in breeding wheat varieties resistant to yellow spot pathogens of wheat leaves.

Keywords: yellow leaf spot; Pyrenophora tritici-repentis; collection varieties; winter wheat (Triticum aestivum L.); resistance; field assessment.

Author Details: Yu. S. Kim, post graduate student (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); G. V. Volkova, D. Sc. (Biol.), chief research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); O. Yu. Kremneva, Cand. Sc. (Biol.), leading research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); E. V. Zuev, Cand. Sc. (Agr.), leading research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); D. M. Marchenko, Cand. Sc. (Agr.), leading research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); I. F. Lapochkina, D. Sc. (Biol.), chief research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).

For citation: Kim YuS, Volkova GV, Kremneva OYu, et al. [Resistance of collection wheat variety samples to the causative agent of yellow leaf spot]. Dostizheniya nauki i tekhniki APK. 2021;35(8):25-9. Russian. doi: 10.53859/02352451_2021_35_8_25.