scholarly journals A VARIETY IN THE SPRING WHEAT PROTECTION SYSTEM FROM LEAFY DISEASES

2019 ◽  
Vol 14 (3) ◽  
pp. 10-14
Author(s):  
Данил Асхадуллин ◽  
Danil Ashadullin ◽  
Дамир Асхадуллин ◽  
Damir Ashadullin ◽  
Нурания Василова ◽  
...  
Keyword(s):  
Spring Wheat ◽  
Stem Rust ◽  
Specific Weight ◽  
Field Resistance ◽  
Brown Rust ◽  
Wheat Varieties ◽  
Resistant Varieties ◽  
Brown Leaf ◽  
The Republic ◽  
Maximum Field

In 2018, 21 varieties of spring soft wheat were recommended for cultivation in Tatarstan, with a specific weight of 79.2% in the structure of the harvested area under spring wheat. Determining the degree of resistance to diseases of these varieties allows you to properly plan protective measures throughout the republic. Studies were conducted in 2015-2018 on the experimental fields of Tatar Scientific Research Institute of Agricultural Sciences. Varieties, recommended for cultivation, differ in the degree of field resistance to the main fungal diseases. The Ester and Zlata varieties have the maximum field resistance to powdery mildew (average 7 points), Chelyaba Stepnaya and Tulaykovskaya Nadezhda varities have the minimum (4 points). Most spring wheat varieties are susceptible to the local brown leaf rust population. The following varities remain resistant to leaf brown rust: Tulaykovskaya 10, Ekada 113, Tulaykovskaya 108, Arkhat, Ulyanovskaya 105, Tulaykovskaya Nadezhda. Moreover, the homogeneity of the genetics of most resistant varieties (caused by the resistance gene Lr19) does not allow epiphytoties of leaf brown rust in the future. According to the 2016-2018 studies, the least degree of stem rust damage was observed in the varieties: Tulaykovskaya 10, Ekada 113, Tulaykovskaya 108, Arkhat, Ulyanovskaya 105 and Tulaykovskaya Nadezhda, on average, 5-10%. There are no varieties, which are immune to stem rust. In 2017 in the conditions of the massive development of dark brown spotting, there were no signs of disease on the leaf of Kazanskaya Yubileinaya variety, the resistance of this variety is determined by the Sb1 gene. The maximum susceptibility to dark brown leaf spotting has the Simbirtsit and Idelle varieties. An integrated resistance to the studied diseases have varieties: Ekada 113, Tulaykovskaya 108 and Arkhat.

SCREENING OF SOFT WHEAT VARIETY OF KASIB NURSERY TO THE BROWN AND STEBLE MILDEW IN THE CONDITIONS OF WESTERN SIBERIA

2018 ◽  
Vol 12 (4) ◽  
pp. 61-66
Author(s):  
Владимир Шаманин ◽  
Vladimir Shamanin ◽  
Инна Потоцкая ◽  
Inna Potockaya ◽  
Олег Кузьмин ◽  
...  
Keyword(s):  
Stem Rust ◽  
Western Siberia ◽  
Wheat Variety ◽  
West Siberia ◽  
Soft Wheat ◽  
Forest Steppe ◽  
Wheat Varieties ◽  
Rust Diseases ◽  
Resistant Varieties ◽  
Set Up

In connection with climate warming and, consequently, the deterioration of phytopathological situation, associated with the emergence of aggressive races of fungal diseases, as well as the cultivation of susceptible varieties on the main wheat sowing area in Western Siberia, it is important to expand the genotypic variety of wheat varieties and to search for new sources of long-term sustainability. The results of the assessment of spring soft wheat varieties of the KASIB breeding nursery, set up jointly by the scientific institutions of Western Siberia, Kazakhstan and CIMMYT International Center for the Improvement of Corn and Wheat are presented in the conditions of the southern forest-steppe of West Siberia. The research was conducted in 2011-2016, using field and laboratory methods. The results of the assessment of susceptibility of KASIB varieties to brown and stem rust have shown, that varieties with high resistance prevail among resistant varieties in all phases of plant development, which indicates targeted selection for immunity with genes of race-specific and age resistance. The use of cluster analysis made it possible to identify significant differences in productivity and resistance to rust diseases of the varieties of KASIB program. Wheat varieties from KASIB are underlined: 14, 15 - Lutestsens 141/03-2 and Sigma (SibNIISKh), from KASIB nursery 16, 17 - Erytrospermum 85-08 (Omsk SAU), Lutestsens 6/04-4 and Lutestsens 186/04- 61 (SibNIISKh), resistant to brown and stem rust, exceeding in terms of yield standards, which are recommended to be used as a starting material for wheat selection in Western Siberia.

scholarly journals Screening of winter wheat varieties for leaf diseases resistance

2020 ◽  
Vol 10 (5) ◽  
pp. 287-290
Author(s):  
H.M. Kovalyshyna ◽  
Yu.M. Dmytrenko ◽  
A.O. Butenko
Keyword(s):  
Winter Wheat ◽  
Field Research ◽  
Brown Rust ◽  
Common Bunt ◽  
Wheat Varieties ◽  
Resistant Varieties ◽  
Group Resistance ◽  
Winter Wheat Varieties ◽  
Term Field

The results of long-term field research on the search for resistant varieties of bread winter wheat, created at the V. M. Remeslo Myronivka institute of wheat, to major leaf diseases are presented. Researches were performed under conditions of artificial inoculation by pathogens in field infectious nurseries. Varieties with resistance to brown rust have been identified: Kolumbiia, Remeslivna, Pereiaslavka, Bohdana, Monotyp, Khazarka, Pam'iati Remesla, Yasnohirka, Dostatok, Svitanok Myronivs`kyi, Berehynia Myronivs`ka, Horlytsia myronivs`ka, Trudivnytsia Myronivs`ka, MIP Kniazhna, MIP Vyshyvanka. Powdery mildew: Kolumbiia, Remeslivna, Snizhana, Pereiaslavka, Favorytka, Bohdana, Khazarka, Monotyp, Pam'iati Remesla, Voloshkova, Yasnohirka, Lehenda Myronivs`ka, Svitanok Myronivs`kyi, Oberih Myronivs`kyi, Berehynia Myronivs`ka, Horlytsia Myronivs`ka, Hospodynia Myronivs`ka, MIP Valensiia, Trudivnytsia Myronivs`ka, MIP Kniazhna, MIP Vyshyvanka. Common bunt: Kolumbiia, Snizhana, Pereiaslavka, Favorytka, Volodarka, Bohdana, Pyvna, Madiarka, Yuviliar Myronivs`kyi, Myronivs`ka storichna, Yasnohirka, Dostatok, Lehenda Myronivs`ka, Oberih Myronivs`kyi, Berehynia Myronivs`ka, Horlytsia Myronivs`ka, MIP Kniazhna and MIP Vyshyvanka. As well varieties with group resistance to leaf diseases: Kolumbiia, Smuhlianka, Snizhana, Pereiaslavka, Volodarka, Favorytka, Bohdana, Zolotokolosa, Khazarka, Monotyp, Madiarka, Pam'iati Remesla, Lehenda Myronivs`ka, Svitanok Myronivs`kyi, Berehynia Myronivs`ka, MIP Vyshyvanka and varieties MIP Dniprianka, Estafeta Myronivs`ka, Vezha Myronivs`ka.

scholarly journals SPEEDS OF SPRING WHEAT GROWTH AND DEVELOPMENT DEPENDING ON HYDROTHERMAL CONDITIONS

2020 ◽  
pp. 43-47
Author(s):  
Marina Poskrebysheva ◽  
Rafael' Ismagilov
Keyword(s):  
Air Temperature ◽  
Spring Wheat ◽  
Coefficient Of Variation ◽  
Growth And Development ◽  
Quantitative Description ◽  
Published Data ◽  
Hydrothermal Conditions ◽  
Wheat Varieties ◽  
The Republic ◽  
Phenological Phases

Studies were conducted to study the effect of air temperature and the amount of precipitation on the growth and development of spring wheat plants. Analysis and quantitative description of the dependence of the duration of interphase periods was carried out by methods of correlation and regression analysis, changes in the duration of periods by calculating the coefficient of variation. For analysis, we used the results of long-term field observations (2014–2019) over the time of the onset of phenological phases in spring wheat varieties of the mid-ripe group in the Ural steppe, as well as published data of Davlekanovskiy GSU of the Republic of Bashkortostan for 1993–2016. An increase in temperature during all periods of vegetation accelerates the growth and development of plants, an increase in rainfall, on the contrary, slows down these processes. The change in hydrothermal conditions most strongly affects the duration of tillering – heading and heading – waxy ripeness periods. The coefficient of variation of their duration is 26.9 and 28.7, respectively. With an increase in air temperature by 1°C in the range of 11.3 ... 20.50С, the tillering-heading interfacial period decreases by 0.408 days, and the ripening of spring wheat grain (at a temperature of 10.7 ... 24.2°C) is accelerated by 0.424 of the day. An increase in precipitation by 10 mm in the range of 1.0 ... 126.2 mm slows the onset of heading by 0.39 days, waxy ripeness of grain (with a total of 0 ... 131.1 mm) - by 0.40 days. Statistical models of the dependence of the duration of interphase periods of growth and development of spring wheat plants on the amount of precipitation and average daily temperature can be used to predict the calendar dates of the onset of phenological phases and the operational adjustment of technological operations to care for sowing

scholarly journals SPEEDS OF SPRING WHEAT GROWTH AND DEVELOPMENT DEPENDING ON HYDROTHERMAL CONDITIONS

2020 ◽  
Vol 15 (1) ◽  
pp. 38-42
Author(s):  
Marina Poskrebysheva ◽  
Rafael' Ismagilov
Keyword(s):  
Air Temperature ◽  
Spring Wheat ◽  
Coefficient Of Variation ◽  
Growth And Development ◽  
Quantitative Description ◽  
Published Data ◽  
Hydrothermal Conditions ◽  
Wheat Varieties ◽  
The Republic ◽  
Phenological Phases

Studies were conducted to study the effect of air temperature and the amount of precipitation on the growth and development of spring wheat plants. Analysis and quantitative description of the dependence of the duration of interphase periods was carried out by methods of correlation and regression analysis, changes in the duration of periods by calculating the coefficient of variation. For analysis, we used the results of long-term field observations (2014–2019) over the time of the onset of phenological phases in spring wheat varieties of the mid-ripe group in the Ural steppe, as well as published data of Davlekanovskiy GSU of the Republic of Bashkortostan for 1993–2016. An increase in temperature during all periods of vegetation accelerates the growth and development of plants, an increase in rainfall, on the contrary, slows down these processes. The change in hydrothermal conditions most strongly affects the duration of tillering – heading and heading – waxy ripeness periods. The coefficient of variation of their duration is 26.9 and 28.7, respectively. With an increase in air temperature by 1°C in the range of 11.3 ... 20.50С, the tillering-heading interfacial period decreases by 0.408 days, and the ripening of spring wheat grain (at a temperature of 10.7 ... 24.2°C) is accelerated by 0.424 of the day. An increase in precipitation by 10 mm in the range of 1.0 ... 126.2 mm slows the onset of heading by 0.39 days, waxy ripeness of grain (with a total of 0 ... 131.1 mm) - by 0.40 days. Statistical models of the dependence of the duration of interphase periods of growth and development of spring wheat plants on the amount of precipitation and average daily temperature can be used to predict the calendar dates of the onset of phenological phases and the operational adjustment of technological operations to care for sowing

scholarly journals Detection of Genomic Regions Associated with Resistance to Stem Rust in Russian Spring Wheat Varieties and Breeding Germplasm

2020 ◽  
Vol 21 (13) ◽  
pp. 4706
Author(s):  
Irina N. Leonova ◽  
Ekaterina S. Skolotneva ◽  
Elena A. Orlova ◽  
Olga A. Orlovskaya ◽  
Elena A. Salina
Keyword(s):  
Common Wheat ◽  
Spring Wheat ◽  
Stem Rust ◽  
Fungal Pathogens ◽  
Genome Wide Association Study ◽  
Genetic Resistance ◽  
Snp Markers ◽  
Genome Wide Association ◽  
Wheat Varieties ◽  
Genome Wide

Stem rust caused by Puccinia graminis f. sp. tritici Eriks. is a dangerous disease of common wheat worldwide. Development and cultivation of the varieties with genetic resistance is one of the most effective and environmentally important ways for protection of wheat against fungal pathogens. Field phytopathological screening and genome-wide association study (GWAS) were used for assessment of the genetic diversity of a collection of spring wheat genotypes on stem rust resistance loci. The collection consisting of Russian varieties of spring wheat and introgression lines with alien genetic materials was evaluated over three seasons (2016, 2017 and 2018) for resistance to the native population of stem rust specific to the West Siberian region of Russia. The results indicate that most varieties displayed from moderate to high levels of susceptibility to P. graminis; 16% of genotypes had resistance or immune response. In total, 13,006 single-nucleotide polymorphism (SNP) markers obtained from the Infinium 15K array were used to perform genome-wide association analysis. GWAS detected 35 significant marker-trait associations (MTAs) with SNPs located on chromosomes 1A, 2A, 2B, 3B, 5A, 5B, 6A, 7A and 7B. The most significant associations were found on chromosomes 7A and 6A where known resistance genes Sr25 and Sr6Ai = 2 originated from Thinopyrum ssp. are located. Common wheat lines containing introgressed fragments from Triticum timopheevii and Triticum kiharae were found to carry Sr36 gene on 2B chromosome. It has been suggested that the quantitative trait loci (QTL) mapped to the chromosome 5BL may be new loci inherited from the T. timopheevii. It can be inferred that a number of Russian wheat varieties may contain the Sr17 gene, which does not currently provide effective protection against pathogen. This is the first report describing the results of analysis of the genetic factors conferring resistance of Russian spring wheat varieties to stem rust.

scholarly journals Field Resistance to the Ug99 Race Group of the Stem Rust Pathogen in Spring Wheat Landraces

Plant Disease ◽  
2013 ◽  
Vol 97 (7) ◽  
pp. 882-890 ◽  
Author(s):  
M. Newcomb ◽  
M. Acevedo ◽  
H. E. Bockelman ◽  
G. Brown-Guedira ◽  
B. J. Goates ◽  
...  
Keyword(s):  
Spring Wheat ◽  
Stem Rust ◽  
Agricultural Research ◽  
Field Resistance ◽  
Future Research ◽  
Rust Pathogen ◽  
Photoperiod Insensitivity ◽  
Wheat Landraces ◽  
Definition Of ◽  
Modern Breeding

Wheat landraces provide a source of genetic variability for breeding. The emergence and spread of highly virulent races of the stem rust pathogen (Ug99 race group of Puccinia graminis f. sp. tritici) threaten wheat production globally. Spring wheat landraces were screened for resistance in eight field seasons at the Kenya Agricultural Research Institute, Njoro, where the Ug99 race group has become endemic. Accessions showing resistance in one season were retested and screened with molecular markers associated with resistance genes Sr2, Sr24, Sr36, and Lr34/Yr18; two height-reducing genes; and a photoperiod insensitivity allele. Of 2,509 accessions tested, 278 were categorized as resistant based on results from at least two seasons. Of these resistant accessions, 32 were positive for one or more markers for Sr2, Sr36, Rht-B1b, or Rht-D1b, indicating that they do not fit the definition of “landrace” because these genes were likely introduced via modern breeding practices. Thus, 246 resistant “landrace” accessions were identified. Of countries with more than five tested accessions, Afghanistan, Iran, Portugal, Ethiopia, Uzbekistan, Greece, Tajikistan, Bosnia and Herzegovina, and Serbia had at least 10% of tested accessions that were resistant to the Ug99 race group. Future research will characterize the resistance to determine its novelty and incorporate novel genes into improved lines.

scholarly journals Breeding of bread wheat for leaf rust resistance in Russia

2020 ◽  
Vol 18 ◽  
pp. 00013 ◽  
Author(s):  
Elena Gultyaeva
Keyword(s):  
Winter Wheat ◽  
Leaf Rust ◽  
Spring Wheat ◽  
Leaf Rust Resistance ◽  
Field Resistance ◽  
Adult Plant ◽  
Aegilops Speltoides ◽  
Wheat Varieties ◽  
Seedling Resistance ◽  
Winter Wheat Varieties

Leaf rust, caused by the fungus Puccinia triticina Erikss., is one of the most common diseases of wheat in Russia. The paper reviews Lr-genes diversity in Russian commercial wheat varieties. Two hundred and sixty-four winter and one hundred and forty-three spring wheat varieties indexed by the State Register of Breeding Achievements in 2005-2018 were studied. It was found that among new varieties, as many as 5% of winter wheat and 30% of spring wheat possess effective seedling resistance. The wide presence of Lr19 and Lr9 genes was detected in the spring wheat. Besides, the high resistance to leaf rust was found in spring wheat varieties with new alien Lr genes (originated from Thinopyrum intermedium (Host) Barkworth & D.R. Dewey and Aegilops speltoides Tausch. Over 40% of winter wheat varieties have different levels of field resistance as well. The molecular screening revealed three varieties with effective adult plant resistance gene Lr37. Other winter wheat varieties include a range of ineffective genes (Lr1, Lr3, Lr10, Lr26, and Lr34), alone or in various combinations.

scholarly journals Brown rust damage of the winter wheat varieties with different levels of resistance to the pathogen in the south of the Rostov region

2020 ◽  
pp. 108-114
Author(s):  
T. G. Derova ◽  
N. V. Shishkin ◽  
O. S. Pavlenko ◽  
A. P. Samofalov
Keyword(s):  
Winter Wheat ◽  
Leaf Rust ◽  
Brown Rust ◽  
Resistant Variety ◽  
Wheat Varieties ◽  
The North ◽  
Damage Degree ◽  
Brown Leaf ◽  
Two Stages ◽  
Winter Wheat Varieties

The purpose of the current work was to study the winter wheat varieties artificially infected with the North Caucasian population of brown rust to identify a damage degree. The study was carried out in two stages on two sets (8 and 10) of varieties with different level of resistance to the pathogen. The trials have established a high damage degree of rust on susceptible varieties, which resulted in productivity decrease from 16.3 to 32.2%. Among the varieties with the maximum damage degree, there was identified the most resistant variety ‘Tarasovskaya 29’ which, when completely (100%) damaged by the disease, showed a minimum productivity decrease, no more than 10.6%. The varieties being poorly susceptible to brown leaf rust reduced the productivity from 11.2% to 20.7%. The smaller indices of productivity decrease among this group were shown by the variety ‘Spartak’. Among the five varieties that showed moderate leaf rust damage, there were different degrees of productivity decrease. The variety ‘Donskaya Yubileynaya’ artificially infected with brown rust, showed a minimal productivity decrease and its structural elements, and it could be identified as the leaf rust resistant variety like the variety ‘Tarasovskaya 29’. When predicting the brown leaf rust epiphytoty, the susceptible and half-resistant wheat varieties require obligatory protection with fungicides.

ASSESSMENT OF PRODUCTIVITY AND ECOLOGICAL PLASTICITY OF SPRING SOFT WHEAT VARIETIES IN THE REPUBLIC OF TATARSTAN

2015 ◽  
Vol 10 (3) ◽  
pp. 148-151 ◽  
Author(s):  
Нижегородцева ◽  
Lyubov Nizhegorodtseva ◽  
Турнин ◽  
Sergey Turnin ◽  
Амиров ◽  
...  
Keyword(s):  
Plant Height ◽  
Spring Wheat ◽  
Soft Wheat ◽  
Wheat Varieties ◽  
Ecological Plasticity ◽  
Spring Soft Wheat ◽  
High Dependency ◽  
The Republic

The article presents the results of studies on assessment the productivity and the plasticity of spring soft wheat varieties in the conditions of the Republic of Tatarstan. The groups of varieties, differing in yield and biometric indicators, were underlined. The high dependency of productivity of spring wheat varieties to plant height index at Tatarstan was shown.

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