scholarly journals Protection of spring wheat with biopreparations and fungicides in the forest steppe of Priobye: I. First results in extreme weather conditions

2021 ◽  
Vol 104 (4) ◽  
pp. 202-212
Author(s):  
N. G. Vlasenko* ◽  
V. A. Pavlyushin ◽  
O. I. Teplyakova ◽  
O. V. Kulagin ◽  
D. O. Morozov
Keyword(s):  
Spring Wheat ◽  
Root Rot ◽  
Seed Treatment ◽  
Weather Conditions ◽  
Brown Rust ◽  
Plant Residues ◽  
Forest Steppe ◽  
Cellulolytic Activity ◽  
Combined Application ◽  
First Results

The paper presents data on a comparative test of the efficacy of chemical, fungal and bacterial fungicides in limiting the harmfulness of main diseases of spring wheat. The research was carried out on leached chernozem of the forest-steppe of Priobye of the Novosibirsk region. It was shown that Sternifag, SP reduces the development of root rot at the end of the growing season by 48 %, which is comparable to the effect of a chemical dressing agent Scarlet, ME (imazalil+tebuconazole) and is slightly inferior to the action of combined application of fungal preparation Trichocin, SP with the bacterial preparation Vitaplan, SP (55 %). Preplanting seed treatment effectively reduced the development of leaf infections: Scarlet, ME suppressed the development of Septoria blotch by 54 %, Scarlet, ME + Vitaplan, SP – of powdery mildew by 69 %, Trichotsin,SP + Vitaplan, SP – of brown rust by 74 %. Fungicide Titul 390, KKR reduced the development of these diseases by 60, 81 and 85 %, respectively. Alirin-B, W with Trichocin, SP suppressed brown rust by 64 %. Cellulolytic activity increased 1.3–1.9 times compared to the control as a result of the action of biological products and Sternifag, SP. The amount of plant residues decreased 2.4 and 1.9 times 15 and 30 days after application. The greatest increase in yield was provided by chemical fungicides – 0.7 t / ha, they were not inferior to the use of Alirin-B, W with Vitaplan, SP against the background of etching with Scarlet, ME fungicide.

scholarly journals Resistance of spring wheat cultivars to pathogens of leaf diseases and root rot in the Right-bank Forest Steppe of Ukraine

2019 ◽  
pp. 35-50
Author(s):  
L. Golosna ◽  
G. Lisova ◽  
O. Afanasieva ◽  
L. Kucherova
Keyword(s):  
Powdery Mildew ◽  
Leaf Rust ◽  
Spring Wheat ◽  
Root Rot ◽  
Brown Rust ◽  
Forest Steppe ◽  
Disease Development ◽  
Wheat Cultivars ◽  
Sources Of Resistance ◽  
The Right

Goal. Determine the degree of resistance of spring wheat cultivars to pathogens and root rot in the Right-bank Forest Steppe of Ukraine and identify promising sources of resistance. Methods. Laboratory — selection of infection material with different levels of virulence, development of infection material of leaf rust and septoria of wheat; field — creation of artificial infection and provocative backgrounds of pathogens and assessment of resistance of the collection of cultivars to this phytopathogens; analytical in mathematical — analysis of the obtained data, calculation of the intensity of disease development. Results. In 2017—2019, 30 cultivars of spring wheat from the collections of the National Center for Plant Genetic Resources of Ukraine were provided by the Ustimovskaya Plant Research Station of the Institute of Plant Growing. V.Ya. Yuriev NAAS was evaluated for resistance to the main leaf pathogens: powdery mildew Blumeria graminis (DC.) E.O. Speer f. sp. tritici Em. Marchal, brown rust Puccinia recondita f. sp. tritici Rob. et Desm. (syn. Puccinia triticina), leaf septoria Zymoseptoria tritici Rob. et Desm., pyrenophora Pyrenophora tritici-repentis (Died.) Drechsler and root rot. The collection included cultivars of Ukrainian, Russian, Kazakh and Kyrgyz breeding. Assessment of resistance to powdery mildew, pyrenophora and root rot was performed on a natural infectious background, and the pathogens of septoria and leaf rust on the created artificial complex infectious background during the period of maximum disease development. Cultivars were characterized by their degree of stability using a 9 — point immunological scale. According to the research results, the degree of resistance of varieties of Ukrainian and foreign breeding to pathogens of leaf diseases and root rot was established. Among the studied spring wheat collection, a number of cultivars were identified that showed resistance both to individual pathogens and to a group of diseases in the Right-Bank Forest Steppe of Ukraine: to powdery mildew — 4, brown rust — 20, septoria — 8, pyrenophorosis — 8, roots — 7. The group resistance was characterized by 13 spring wheat cultivars. Conclusions. Valuable sources of resistance are cultivars of Oksamit Mironovsky (UKR) and Lebedushka (RUS) with resistance to the group of pathogens of powdery mildew, leaf rust and pyrenophorosis, characteristic of the Right-Bank Forest Steppe zone of Ukraine. Other spring wheat cultivars that have high resistance to both individual pathogens and their groups are recommended to be involved in the breeding process to create new promising spring wheat cultivars with high resistance rates.

scholarly journals Phytosanitary condition of spring wheat crops depending on cultivation technology

2019 ◽  
Vol 49 (4) ◽  
pp. 5-16 ◽  
Author(s):  
N. G. Vlasenko ◽  
O. V. Kulagin ◽  
M. T. Egorycheva ◽  
I. A. Ivanova
Keyword(s):  
Spring Wheat ◽  
Root Rot ◽  
Soil Layer ◽  
Soil Surface ◽  
Plant Residues ◽  
Forest Steppe ◽  
Vegetative Period ◽  
Pests And Diseases ◽  
Traditional Technology ◽  
No Till

The paper presents the results of research into the formation of phytosanitary conditions for spring wheat crops grown with No-Till technology, compared to the traditional one, with regard to basic pests and diseases. The long-term stationary experiment was laid down in 2008 on leached сhernozem in the Central forest-steppe Ob agrolandscape district of Novosibirsk region. At the beginning of development of No-Till technology, plant residues decomposed on the soil surface almost completely, but after fi ve years of use, a mulch cover began to form, which did not decompose during the vegetative period. This affected the temperature dynamics of the upper soil layer. With No-Till technology it was 1.1-6.0 °C lower. This infl uenced settling of barley fl ea beetles in crops. On average, over the last 7 years of experiment, their number was 2.4 times lower in wheat crops grown with No-Till technology compared to traditional one. Damage of main shoots by intra-stem pests was 1.5 times, and lateral ones 1.4 times higher in wheat crops with traditional technology compared to No-Till. In contrast, presence of wheat thrips larvae in ears was 1.3 times higher when using No-Till compared to traditional technology. Despite the accumulation of plant residues on the soil surface, there was no signifi cant increase in the damage to plants by common root rot with No-Till technology. On average, when using No-Till technology wheat root system was affected by 1.8% more compared to the traditional one. The problem of root rot can be solved by including phytosanitary crops in the crop rotation, like oats and oil radish. There were no signifi cant differences in the development of leaf infections (Septoria blight, powdery mildew, brown rust) between both technologies. Timely use of fungicides eliminates the problem of leaf diseases. The study showed that problems with pests and diseases are solved by the chemical treatments included in the technology, and that with No-Till technology additional protective measures are not required.

scholarly journals Taxonomic composition and incidence of phytopathogenic fungi on the roots of soft spring wheat in the Kansk-Krasnoyarsk forest-steppe

2021 ◽  
Vol 2 (44) ◽  
pp. 22-22
Author(s):  
Alexander Saakian ◽  
◽  
Keyword(s):  
Spring Wheat ◽  
Root Rot ◽  
Bipolaris Sorokiniana ◽  
Triticum Aestivum L ◽  
Wheat Root ◽  
Phytopathogenic Fungi ◽  
Taxonomic Composition ◽  
Forest Steppe ◽  
Root Infection ◽  
Fusarium Spp

The taxonomic composition and incidence of phytopathogenic fungi on the roots of soft spring wheat Triticum aestivum L. of nine varieties of Siberian origin (Altayskaya 70, Altayskaya 75, Krasnoyarskaya 12, Novosibirskaya 15, Novosibirskaya 16, Novosibirskaya 29, Novosibirskaya 31, Novosibirskaya 41 and Svirel) cultivated using wheat and fallow as a predecessor, was studied in the area of Kansk-Krasnoyarsk forest-steppe. Average incidence of fungal root infection was 24%. In plants grown using wheat as a predecessor, the incidence was statistically significantly (p <0.05) higher than in plants grown using fallow as a predecessor (27.3 versus 20.6%). Statistically significant (p <0.05) differences in the prevalence of root infection were revealed between cultivars. The maximal prevalence (33.3 and 32.3%, respectively) on average for the wheat predecessor and fallow was found for the varieties Svirel and Altayskaya 75, the minimal (16.7%) for the varieties Novosibirskaya 16 and Altayskaya 70. The complex of phytopathogenic fungi on the roots is represented by Fusarium spp., Bipolaris sorokiniana and Alternaria spp. (31.4, 44.9 and 23.7% of the pathogenic complex on average for varieties and variants, respectively). The composition of pathogens statistically significantly (p <0.01) depends on the predecessor. In the plants cultivated using wheat as a predecessor, the proportion of Alternaria spp. was higher whereas proportions of Fusarium spp. and Bipolaris sorokiniana were lower. No differences in prevalence and taxonomic composition of root infection between varieties originated from Novosibirsk territory, Krasnoyarsk territory and Altay territory were found. Keywords: SPRING WHEAT, ROOT ROT, KRASNOYARSK TERRITORY, FUSARIUM SPP., BIPOLARIS SOROKINIANA, ALTERNARIA SPP

scholarly journals Root rot in new cultivars of spring wheat depending on sowing dates

2020 ◽  
Vol 50 (2) ◽  
pp. 39-46
Author(s):  
A. A. Razina ◽  
F. S. Sultanov ◽  
О. G. Dyatlova
Keyword(s):  
Spring Wheat ◽  
Root Rot ◽  
Control Level ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Summer Drought ◽  
Wheat Cultivars ◽  
Yield Increase ◽  
Sowing Dates ◽  
New Cultivars

The results of studying resistance of mid-ripening spring wheat cultivars to root rot in the forest-steppe zone of Irkutsk region are presented. The study was conducted in a two-factor field experiment. Factor A – mid-ripening spring wheat cultivars: Tulunskaya 11 (control), Zoryana, Маrsianka, Stolypinka (new cultivars). Factor B – seeding dates: May 10, 20, 30, preceded by fallow. The experimental plot area was 70.0 m2. The experiment was repeated three times. Plot arrangement was randomized. Root rot prevalence was determined during the tillering phase of the crop. In 2018, the sowing dates did not affect the disease due to the long spring-summer drought (May-June) and a higher average daily temperature compared to long-term average values. In arid and cold conditions of May 2019, with the late sowing period (May 30), root rot prevalence was significantly lower than when sowing on May 10 and 20. In 2019, a higher level of the disease was registered than in 2018 by 14.3%. Significant differences in root rot prevalence in both years of research were noted between the control cultivar Tulunskaya 11 and the new cultivars of spring wheat Zoryana and Stolypinka. In the tillering phase of the latter two, disease indicators were lower by 5.6% and 10.5% in 2018, and by 8.8% and 7.9% in 2019, respectively. Маrsianka cultivar was at the control level for this indicator. The best cultivar under study was Stolypinka, which was not only less affected by root rot, but also gave a statistically significant yield increase of 0.16 t/ ha in 2018 and 0.22 t/ha in 2019.

EFFECTS OF IMAZALIL SEED TREATMENT ON SUBCROWN INTERNODE LENGTHS AND COLEOPTILE-NODE-TILLERING IN WHEAT

1980 ◽  
Vol 60 (4) ◽  
pp. 1467-1472 ◽  
Author(s):  
S. H. F. CHINN ◽  
P. R. VERMA ◽  
D. T. SPURR
Keyword(s):  
Spring Wheat ◽  
Root Rot ◽  
Seed Treatment ◽  
Cold Hardiness ◽  
Morphological Changes ◽  
Wheat Cultivars ◽  
Soft Or ◽  
Common Root ◽  
Common Root Rot ◽  
Treated Seed

The effects of seed treatment with imazalil at 0.2 and 0.3 g a.i./kg seed on subcrown internode length and occurrence of coleoptile-node-tillers (CNT) was studied in four spring wheat cultivars at two locations in Saskatchewan. Without treatment, Cypress had the longest internodes followed in descending order by Glenlea, Neepawa, and Wascana. Generally, plants from imazalil-treated seed had significantly shorter subcrown internodes. Only a few plants from nontreated seed produced CNT and of these, many were soft or aborted, while the treated seed produced a number of CNT and many of these were firm tillers. The possible importance of these morphological changes in the reduction of common root rot, on drought resistance, cold hardiness, and yield is discussed.

scholarly journals Effect of pre-sowing treatment of spring wheat seeds on linear sizes and geometric grain characteristics

2021 ◽  
Vol 51 (1) ◽  
pp. 18-24
Author(s):  
N. G. Vlasenko ◽  
S. V. Burlakova
Keyword(s):  
Spring Wheat ◽  
Seed Treatment ◽  
Consumption Rate ◽  
Plant Protection ◽  
Trichoderma Viride ◽  
Plant Protection Products ◽  
Close Correlation ◽  
Forest Steppe ◽  
Sowing Seed ◽  
Wheat Seeds

The results of assessing the effect of biological preparations and a seed disinfectant on the technological qualities of grain of soft spring wheat Novosibirskaya 31 are presented. The effectiveness of the use of biological plant protection products was studied in the field experiment, laid down in 2020 in the forest-steppe conditions of the Ob region. Pre-sowing seed treatment included the following options: control (without treatment); Trichodermin, P (Trichoderma viride, titer more than 6 billion spores/g), consumption rate – 15 kg/t seed; Sporobacterin, SP (Bacillus subtilis + Trichoderma viride, strain 4097), consumption rate – 0.5 kg/ton of seeds; Scarlet, ME, chemical standard (imazalil (100 g/l) + tebuconazole (60 g/l), consumption rate – 0.3 l/t of seeds. The use of the preparations contributed to an increase in yield by 0.40 and 0.52 t/ha when using Trichodermin and Sporobacterin, respectively, and by 0.08 t/ha when using fungicide Scarlet. In this case, the mass of 1000 grains increased by 0.84, 0.80 and 0.96 g, respectively, relative to the control. The preparations Trichodermin and Sporobacterin had a significant effect on the growth of grain in length and width relative to the control – by 5.4-6.9 and 9.6%, Scarlet – by 10.6 and 13.9%, respectively. Pre-sowing seed treatment contributed to the growth of such indicators of the caryopsis as volume (by 19.6–29.3%), surface area (by 12.1–19.2%), and sphericity (by 6.3–7.8%). To a greater extent, they increased with the use of fungicide Scarlet. Getting larger grain led to an increase in the endosperm content by 0.76–1.14%. A close correlation has been shown between the indicators of the mass of 1000 grains and the linear grain sizes (r = 0.92–0.98), as well as with the grain volume, sphericity and endosperm content (r = 0.98–0.99). Pre-sowing treatment of spring wheat seeds provides grain with improved technological properties.

scholarly journals EFFICIENCY OF MICROGUMIN AT COMBINATION AT COMBINATION SEED TREATMENT OF SUMMER BARLEY WITH RAKSIL

2008 ◽  
Vol 6 ◽  
pp. 77-83
Author(s):  
I.M. Pyschur ◽  
K.I. Volkogon ◽  
L.V. Kosenko
Keyword(s):  
Biological Activity ◽  
Root Rot ◽  
Seed Treatment ◽  
Nitrogenase Activity ◽  
Agricultural Technology ◽  
Complex Action ◽  
Combined Application ◽  
Biological Preparation ◽  
Presowing Treatment ◽  
Microbial Preparation

The presowing treatment of barley seeds with the microbial preparation of complex action microgumin promotes sufficient increase of this culture yield and intensification of biological activity in rhizoshere. Combined application of microgumin with the raksil fungicide has not affected biological activity of biological preparation. Applied agricultural technology enhances barley seeds’ germination energy, promotes increase of potential nitrogenase activity on plants’ roots and prevents spreading of root rot diseases. It was established that tebuconasol (raksil reactant) in concentrations 0,01; 0,1; 0,3 g/l of nutrient medium promotes increase of nitrogenase activity of the microgumin bioagent Azospіrіllum brasilense 410.

Sign in / Sign up

Export Citation Format

Share Document