Pathogenic complexity of septoria spot disease of wheat in northern Kazakhstan

Sandukash Amantaevna Babkenova; Adylkhan Temirhanovich Babkenov; Elena Vasilyevna Pakholkova; Belgibay Kamalovich Kanafin

doi:10.14719/pst.2020.7.4.798

Authors

Sandukash Amantaevna Babkenova LLP, Scientific-Production Center of Grain Farming named after A.I. Barayev, Kazakhstan http://orcid.org/0000-0002-3239-5575
Adylkhan Temirhanovich Babkenov LLP, Scientific-Production Center of Grain Farming named after A.I. Barayev, Kazakhstan http://orcid.org/0000-0002-2630-6919
Elena Vasilyevna Pakholkova All-Russian Research Institute of Phytopathology, Russia http://orcid.org/0000-0002-8661-6572
Belgibay Kamalovich Kanafin LLP, North Kazakhstan Agricultural Experimental Station, Kazakhstan http://orcid.org/0000-0002-0289-9756

DOI:

https://doi.org/10.14719/pst.2020.7.4.798

Keywords:

Spring common wheat, Stagonospora nodorum, Septoria tritici, Stagonospora avenae f.sp. Triticea, species diversity

Abstract

Northern Kazakhstan is the main zone of spring wheat cultivation where, 85 % of the cultivated area is located. There is not a single variety resistant to Septoria spot among the varieties approved for use. The frequency of epiphytoties of wheat diseases in the northern part of Kazakhstan is four cases every ten years. During the years of epiphytotic development of brown rust and Septoria spot with the dominance of a particular disease, the yield of spring wheat is reduced by 25 % or more. Knowledge of the species composition of pathogens of Septoria spot allows a more focused approach to the study and creation of varieties of wheat resistant to this disease. The aim of the research is to study the species of Septoria spot pathogens in wheat in Northern Kazakhstan. In 2018–2019, the pathogenic complex of the causative agents of wheat Septoria spot was studied. The collection of leaves affected by Septoria spot was carried out on spring wheat varieties in the steppe, forest-steppe zones of Northern Kazakhstan. The species composition of Septoria pathogens was determined from microscopic preparations from the collected samples; which were represented by three types of septorial fungi: Septoria tritici, Stagonospora nodorum, Stagonospora avenae. In the steppe and forest-steppe zones of Northern Kazakhstan, the dominant species was S. tritici followed by S. nodorum.

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Author Biography

Sandukash Amantaevna Babkenova, LLP, Scientific-Production Center of Grain Farming named after A.I. Barayev, Kazakhstan

Head of the Laboratory of Plant Immunity to Diseases

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