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  4. Protection of Oats against Puccinia and Drechslera Fungi in Various Meteorological Conditions
 
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Protection of Oats against Puccinia and Drechslera Fungi in Various Meteorological Conditions

Type
Journal article
Language
English
Date issued
2024
Author
Danielewicz, Jakub
Jajor, Ewa
Horoszkiewicz, Joanna
Korbas, Marek
Blecharczyk, Andrzej 
Idziak, Robert 
Sobiech, Łukasz 
Grzanka, Monika 
Szymański, Tomasz
Faculty
Wydział Rolnictwa, Ogrodnictwa i Biotechnologii
Journal
Applied Sciences (Switzerland)
ISSN
2076-3417
DOI
10.3390/app14167121
Web address
https://www.mdpi.com/2076-3417/14/16/7121
Volume
14
Number
16
Pages from-to
art. 7121
Abstract (EN)
Due to their multi-purpose use and, in many cases, lower requirements and financial outlays for cultivation, oats are an interesting crop. However, fungal diseases may contribute to significant declines in grain yields and quality. The aspects that may potentially influence this matter of fact include weather conditions. The aim of the study was to determine the severity of diseases caused by fungi in oat cultivation during the vegetation season. The next goal was to assess the efficacy of the selected active ingredients (a.i.) of fungicides from the chemical groups of triazoles and strobilurins in selected diseases’ control under various meteorological conditions. All of the fungicides were applied in the form of a spray treatment to reduce the severity of the diseases in the cultivation of different oat varieties. Husked and naked oat varieties were used. The health status of the oat plants was determined on the basis of a macroscopic evaluation of plants performed in accordance with the proper methodology. Field experiments were carried out under different weather conditions, which varied over the years during which the trials were conducted. Statistically significant differences were found in the reduction in infection for F and F1 leaves with D. avenae and P. coronata in comparison to the control treatment, regardless of the a.i. used. The use of a.i. tebuconazole (250 g/L), a.i. epoxiconazole (125 g/L), a.i. azoxystrobin (250 g/L) and a.i. picoxystrobin (250 g/L) enabled a reduction in the severity of oat helmintosporiosis in all years of the study for all the varieties analyzed. The efficacy was 72.4%, 74.2%, 71.5%, and 73.1%, respectively. Higher efficacy in reducing P. coronata was found in comparison with D. avenae. The obtained research results confirm the satisfactory efficacy of the above-mentioned active substances in reducing the fungi D. avenae and P. coronata.
Keywords (EN)
  • weather conditions

  • fungal diseases

  • fungicides

  • plant protection

License
cc-bycc-by CC-BY - Attribution
Open access date
August 14, 2024
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