Discrimination of powdery mildew and yellow rust of winter wheat using high-resolution hyperspectra and imageries

Key weather factors determining the occurrence and severity of powdery mildew and yellow rust epidemics on winter wheat were identified. Empirical models were formulated to qualitatively predict a damaging epidemic (>5% severity) and quantitatively predict the disease severity given a damaging epidemic occurred. The disease data used was from field experiments at 12 locations in the UK covering the period from 1994 to 2002 with matching data from weather stations within a 5 km range. Wind in December to February was the most influential factor for a damaging epidemic of powdery mildew. Disease severity was best identified by a model with temperature, humidity, and rain in April to June. For yellow rust, the temperature in February to June was the most influential factor for a damaging epidemic as well as for disease severity. The qualitative models identified favorable circumstances for damaging epidemics, but damaging epidemics did not always occur in such circumstances, probably due to other factors such as the availability of initial inoculum and cultivar resistance.

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Impact of the estimated doses of mineral fertilizers on the infestation mildew, pyrenophora and yield of winter wheat varieties

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

10.26897/978-5-9675-1762-4-2020-1 ◽

2020 ◽

Author(s):

A.Y. Ozheredova ◽

◽

A. N. Esaulko ◽

L.A. Mikhno ◽

A.P. Shutko ◽

...

Keyword(s):

Powdery Mildew ◽

Winter Wheat ◽

Mineral Fertilizers ◽

Wheat Varieties ◽

Leached Chernozem ◽

Winter Wheat Varieties

The article presents materials on the influence of calculated doses of mineral fertilizers on the incidence of powdery mildew, pyrenophorosis and yield of winter wheat varieties cultivated on leached Chernozem for 2016-2018.

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Effect of precursors, fertilizers and soil cultivation on the phytosanitary condition of winter wheat crops in the zone of the Left Bank Forest-Steppe

Interdepartmental thematic scientific collection "Agriculture" ◽

10.31073/zem.92.100-108 ◽

2017 ◽

Vol 1 (92) ◽

pp. 100-108

Author(s):

T.S. Vinnichuk ◽

L.M. Parminskaya ◽

N.M. Gavrilyuk

Keyword(s):

Powdery Mildew ◽

Winter Wheat ◽

Root Rot ◽

Forest Steppe ◽

Left Bank ◽

Soil Cultivation ◽

No Till ◽

Harmful Organisms

In the article the research the results of studies of the phytosanitary state of winter wheat sowing with three soil treatments - plowing (22-24 cm), shallow (10-12 cm) and zero (no - till) with various doses of fertilizers: N56 Р16 К16 , N110-130 Р90 К110 and N145-165 Р135 К150 , without fertilizers (control) for the two predecessors - soybean and rapeseed. The influence of these methods on the development and prevalence of powdery mildew, septoriosis of leaves, root rot of winter wheat, the most common pests in the area of research - cereal flies, wheat thrips and grain sawflies. The identified measures to limit the development and spread of harmful organisms above.

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Influence of a chemical preparation of triazole50% cs on sowing the winter wheat against rust

International Journal on Integrated Education ◽

10.31149/ijie.v3i9.626 ◽

2020 ◽

Vol 3 (9) ◽

pp. 231-233

Author(s):

AliyevSh.K. ◽

TuychiyevI.U ◽

Karimov N ◽

Umaraliev.M.I

Keyword(s):

Winter Wheat ◽

Field Experiments ◽

Yellow Rust ◽

Biological Efficiency ◽

Chemical Preparation ◽

Seed Growth ◽

Biological Farming ◽

The Given ◽

Farming Efficiency

The article is focused on the data of the carried works on studying biological efficiency of fungi Triazole 50% on sowing the winter wheat against yellow rust as well as on the height, development and fertility of the wheat. On May 5, 2019 from 9 to 10 o’clock under the temperature 21-23 field experiments of Triazol 50% CS manufactured by the firm “Agroximstar” (Uzbekistan) were carried out on winter wheat as a protector of seeds of winter wheat of Pervitsa sort against the disease of yellow rustin the irrigated conditions in an experimental field of the Institute “Istiklal” of Andijan district of Andijan region. The aim of the given research is to study biological-farming efficiency and determination of optimal norms of preparation expenses and to study the influence of fungicide on the height and development as well as on the fertility of the wheat. The received data showed that the preparation Triazole 50% CS effected on the pathogen of yellow rust favorably and besides that it didn’t effect on seed growth and energy of growth negatively.

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