V. A. Aparina, N. I. Boiko, V. Yu. Sukhomlinov, A. A. Timofeev, V. V. Piskarev
Siberian Research Institute of Plant Growing and Breeding, branch of the “Federal Research Center the Institution of Cytology and Genetics”, Siberian Branch, Russian Academy of Sciences, ul. S-100, 21, a/ya 375, pos. Krasnoobsk, Novosibirskii r-n, Novosibirskaya obl., 630501, Russian Federation
Abstract. The work was performed in the forest-steppe of Cis-Ob chernozem zone, West Siberian province, Novosibirsk region, in 2018–2020. The study aimed to determine highly productive sources of known genes resistant to a complex of fungal diseases of spring common wheat. The material for the study was 158 lines of various ecological and geographical origins of three ripeness groups selected from collection samples. Resistance to fungal pathogens was determined according to the following scale: 99 points – no signs of damage, 9 points – damaged by less than 5%, 7 points – damaged by 6–10%, 5 points – damaged by 11–20%, 3 points – damaged by 21–50%; 1 point – damaged by more than 50%. We revealed genotypes from various ripeness groups, combining high yield, the weight of 1,000 grains, and complex resistance to diseases (powdery mildew, brown and stem rust under field conditions) with a resistance varying from 7 points to 99 points. For Svecha variety, we postulated the resistance genes Lr34, Sr12, and Pm38. This variety exceeded Novosibirskaya 31 standard by 6.6 g in the weight of 1,000 grains, and by 86.9 g/m2 in yield. According to the published data, the resistance genes postulated for Gerakl variety were Lr26 and Pm8. It exceeded the specified standard by 10.0 g and 108.2 g/m2, respectively. Resistance to brown rust and powdery mildew (from 7 to 99 points), high yield and the weight of 1,000 grains were characteristic of Kenyon varieties (according to the published data, resistance genes Lr26 or Lr11, Lr13, Lr16, and Sr23 were expected). These varieties exceeded Novosibirskaya 15 standard in the weight of 1,000 grains by 7.4 g, in yield by 134.6 g/m2, as well as variety Lutestsens 503 (genes Lr10, Lr19 and Sr25 were postulated), which significantly exceeded Novosibirskaya 31 standard by 5.7 g and 118.8 g/m2, respectively.
Keywords: spring common wheat (Triticum aestivum L.); resistance; collection; source; yield; productivity; gene; weight of 1,000 grains; powdery mildew; brown rust; stem rust.
Author Details: V. A. Aparina, research assistant (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); N. I. Boiko, junior research fellow; V. Yu. Sukhomlinov, first category agronomist; A. A. Timofeev, Cand. Sc. (Agr.), senior research fellow; V. V. Piskarev, Cand. Sc. (Agr.), head of laboratory.
For citation: Aparina VA, Boiko NI, Sukhomlinov VYu, et al. [High-yielding sources of resistance to leaf-stem diseases of wheat in the forest-steppe of the Cis-Ob zone of the Novosibirsk region]. Dostizheniya nauki i tekhniki APK. 2021;35(10):17-24. Russian. doi: 10.53859/02352451_2021_35_10_17.