Variability of the Russian populations of &lt;em&gt;Puccinia triticina&lt;/em&gt; under the influence of the host plant

Gultyaeva, E. I.; Левитин, М. М.; Shaydayuk, E. L.

doi:10.21638/spbu03.2021.104

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…Long-term studies of E.I. Gultyaeva (Gultyaeva 2018) confirm, with the help of molecular markers, the wide distribution of the ineffective seedling Lr10 gene in Russian cultivars. The presence of Lr10 in the cultivars Bagira and Antonina is also confirmed by it with the help of molecular markers.…”

Section: Discussionmentioning

confidence: 78%

Journal of Plant Protection Research

Волкова¹,

Kudinova²,

Ваганова³

2020

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Gene postulation is one of the fastest and most cost-effective methods for identifying seedling leaf rust resistance genes in wheat cultivars. Many researchers use this approach to identify Lr genes in wheat cultivars. The purpose of our research was to identify seedling leaf rust resistance genes in 20 wheat cultivars from different breeding centers of Russia, Ukraine and Germany. Forty-two near isogenic Thatcher lines and 10 Puccinia triticina isolates were used for gene postulation. When assessing the infection types to cultivars and lines, a scale was used, according to Oelke and Kolmer. In 20 wheat cultivars 19 Lr genes were postulated: 2c,

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Section: Discussionmentioning

confidence: 78%

Journal of Plant Protection Research

Волкова¹,

Kudinova²,

Ваганова³

2020

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“…Недооценка этого фактора может привести к широкому районированию однородных по генам сортов, что в недалеком будущем вызовет сдвиг в популяционном составе фитопатогенов, появление и быстрое нарастание новых рас и, как следствие, значительные потери урожая. Адаптация и специфичность растения-хозяина показаны в качестве ключевых движущих факторов в эволюции и расхождения клонально размножающихся фитопатогенов, которые включают ржавчину листьев [2]. В Государственный реестр включено более 250 сортов озимой пшеницы, разрешенных к использованию по Российской Федерации, в том числе 55 сортов рекомендовано к возделыванию в Средневолжском регионе [3] В среднем по сортам (табл.…”

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Influence of Fungicidal Treatment on Yield and Grain Quality of Winter Wheat

Fadeeva

Gazizov

Kurmakaev³

et al. 2021

Vestnik of Kazan State Agrarian University

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In 2017-2019, studies were carried out in the Republic of Tatarstan to study the effect of fungicidal treatment on the yield and grain quality of new varieties of winter wheat. The experiment scheme provided for the study of the following options: variety (factor A) - Darina, Nadezhda, Universiade; fungicidal treatment with Titul Duo at a dose of 0.25 l / ha in the heading phase (factor B), years (factor C). The predecessor is pure steam. The soil in the experiment was gray forest, medium loamy. Content in the arable layer: humus (according to Tyurin) - 3.1-3.4%; pHsal. - 5.2-5.5; K2O (according to Kirsanov) - 122-145 mg / kg of soil, P2O5 (according to Kirsanov) - 262-271 mg / kg of soil. Plot area - 25 m2. The yield and quality of grain largely depend on the phytosanitary state of winter wheat crops, in particular, on the development of diseases. The prevalence and harmfulness of leaf-stem diseases in wheat largely depends on the temperature conditions during the growing season of the crop and on the moisture conditions. As a result of the development of diseases, there is a significant decrease not only in yield, but also a deterioration in the quality characteristics of wheat grain. The highest percentage of prevalence (85%) and intensity of development (45.7%) of powdery mildew was observed in the Universiade variety. Evaluation of plants showed a low lesion of the leaf surface by leaf rust: from 18.6% in the Nadezhda variety to 24.6% in the Universiade variety. The biological effectiveness of protective measures in winter wheat crops when treated with a fungicide has been calculated. On average for varieties for three years, the biological effectiveness of the use of the drug Title Duo was more than 90%. The fungicide treatment increased the yield on average for the studied varieties by 0.55 t / ha. The maximum increase in grain yield was obtained for the Universiade variety - 0.68 t / ha. Indicators of technological quality of grain with an average for varieties increased after treatment with fungicide sowing: weight of 1000 grains per 2.2 grams; grain nature by 5.4 g / l; glassiness by 2.6%; evenness by 1.4%; the wet gluten content is 1.6%. According to the results of analysis of variance, a significant influence of the conditions of the year on the indicators of the technological quality of grain was established: on the nature of the grain (56.8%), the total glassiness of the grain (51.43%), the mass of 1000 grains (51.4%) and the gluten deformation index (52.37%). To a lesser extent, environmental conditions influenced the evenness of the grain (22.0%) and the mass fraction of gluten in the grain (21.66%). At the same time, the contribution of the fungicide to the formation of indicators of the technological quality of grain varied from 7.69% (grain evenness) to 32.43% (gluten content). The grain nature by 14.99% was determined by the fungicidal treatment of crops and only by 10.61% depended on the genotype

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Evaluation of Resistance to Stem Rust and Identification of Sr Genes in Russian Spring and Winter Wheat Cultivars in the Volga Region

et al. 2023

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The Volga region is one of the main grain-producing regions of Russia. Wheat stem rust caused by Puccinia graminis f. sp. tritici is among the most destructive fungal diseases of wheat. Recently, its harmfulness has increased in the Volga region. In this regard, an analysis of the resistance and diversity of the Sr genes in the Russian wheat cultivars is necessary. In this work, 126 wheat cultivars (including 23 durum wheat cultivars and 103 bread wheat cultivars) approved for use in the Volga region were evaluated for their resistance to two samples of P. graminis f. sp. tritici populations from different Volga region areas at the seedling stage. Specific DNA primers were used to identify resistance genes (Sr2, Sr24, Sr25, Sr26, Sr28, Sr31, Sr32, Sr36, Sr38, Sr39, and Sr57). Highly resistant cultivars (30 from 126) were identified. In bread wheat cultivars, the genes Sr31 (in 19 cultivars), Sr24 (in one cultivar), Sr25 (in 15 spring wheat cultivars), Sr28 (in six cultivars), Sr38 (in two cultivars), and Sr57 (in 15 cultivars) and their combinations—Sr31 + Sr25, Sr31 + Sr38, Sr31 + Sr28, Sr31 + Sr57, Sr31 + Sr28 + Sr57, and Sr31 + Sr24—were identified. The obtained results may be used to develop strategies for breeding rust-resistant cultivars.

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Variability of the Russian populations of <em>Puccinia triticina</em> under the influence of the host plant

Cited by 3 publications

References 16 publications

Journal of Plant Protection Research

Journal of Plant Protection Research

Influence of Fungicidal Treatment on Yield and Grain Quality of Winter Wheat

Evaluation of Resistance to Stem Rust and Identification of Sr Genes in Russian Spring and Winter Wheat Cultivars in the Volga Region

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