The use of fungicidal seed disinfectants against root rot of spring wheat in the Moscow region

The effectiveness of the insecticofungicide Prestige, KS, used to protect plants from damage by diseases and damage by pests in the first stages of ontogenesis is shown. Presowing seed treatment with a preparation with a flow rate of 2.5–3.5 l/t reduced the incidence of winter wheat with root rot of rhizoctoniosis etiology by 62.9%. The biological effectiveness of the Prestige, KS (3.5 l / t) on moderately infectious background was also quite high - 59.5%, however, it was 9.0% lower than the standard. It practically did not influence overwintering of plants. After application of Prestige, KS were in the norm of 2.5 and 3.5 l/t, and Maxim Extreme, KS in the norm of 1.75 l/t, the number of plants preserved by spring varied from 91.9 to 92.9%, that is higher than in the control by 3.9–4.9%. The application of insectofungicide Prestige, KS at a rate of 2.5 l/t on spring wheat sowings reduced the number of grain fleas by more than 80.0%and the damage of the stems by the larvae of cereal flies by 74.3%. This preparation is not phytotoxic with respect to cereals.

Download Full-text

Managemental efficiency of the use of fungicides in abatement against soybeans disease

сборник статей всероссийской научной конференции с международным участием "Растениеводство и луговодство" ◽

10.26897/978-5-9675-1762-4-2020-109 ◽

2020 ◽

Author(s):

G.A. Polovinkin ◽

◽

I.L. Tychinskaya

Keyword(s):

Root Rot ◽

Wide Spread ◽

Protective Measures ◽

Biological Effectiveness

As a result of the studies carried out, a complex of diseases on soybeans was identified: ascochitis, peronoscrosis and root rot. The studies carried out indicate a wide spread of diseases in the studied culture and the need to develop a set of protective measures to combat them. The greatest biological effectiveness was selected in the variant when using a complex of fungicides Redigo Pro + Prozaro, which averaged 93.7% for diseases.

Download Full-text

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

АгроЭкоИнфо ◽

10.51419/20212222 ◽

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

Download Full-text

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

Siberian Herald of Agricultural Science ◽

10.26898/0370-8799-2020-2-5 ◽

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.

Download Full-text

Infrared thermometry leaf temperature measurements and common root rot of spring wheat and spring barley

Plant and Soil ◽

10.1007/bf02370657 ◽

1987 ◽

Vol 101 (2) ◽

pp. 287-290 ◽

Cited By ~ 2

Author(s):

L. J. Duczek

Keyword(s):

Spring Wheat ◽

Root Rot ◽

Spring Barley ◽

Leaf Temperature ◽

Temperature Measurements ◽

Common Root ◽

Infrared Thermometry ◽

Common Root Rot

Download Full-text

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

Canadian Journal of Plant Science ◽

10.4141/cjps80-206 ◽

1980 ◽

Vol 60 (4) ◽

pp. 1467-1472 ◽

Cited By ~ 6

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.

Download Full-text