The Ability of Bipolaris Sorokiniana Isolated from Spring Barley Leaves to Survive in Plant Residuals of Different Crops

Abstract

Spring barley is an important high-value crop globally.However, it is highly susceptible to soil-borne diseases in Kazakhstan and the world. Bipolaris sorokiniana (Sacc.) Shoemaker is the most important soil-borne pathogen that causes root rot and spot blotch diseases in cereal crops. This study aimed to evaluate the ability of B. sorokiniana isolated from spring barley leaves to survive in plant residuals of different crops. The fungus was isolated from spring barley leaves from the Zholbarys agro farm of Kerbylak district of Almaty, southeastern Kazakhstan, in 2021. Laboratory experiments were conducted at Kazakh National Agrarian Research University. The study was conducted on 10 th days of seedlings of cereal, legume, and oilseed crops. The obtained results showed that seedlings of spring barley, spring wheat, and oats retained the B. sorokiniana infection. Interestingly, the infection of B. sorokiniana isolated from leaves of spring barley statistically significantly increased symptoms of spot blotch on spring wheat and spring barley seedlings, while symptoms decreased on oats (P-value <0.01). The introduction of rapeseed, chickpeas, peas, and oats into the crop rotation system in southeastern Kazakhstan could limit the volume of the B. sorokiniana infection in spring wheat and spring barley. On rapeseed, peas, and chickpeas seedlings no symptoms of spot blotch were observed (P-value <0.01).

The Harmfulness of Common Root Rot in Winter Wheat Varieties in Kazakhstan

“…They considered the pathogenicity of common root rot in triticale caused by B. sorokiniana and found that it causes a reduction of productive business, crop thinning, reduction of earliness and grain weight, and a decrease in grain quality (Özer et al, 2020b). Studies evaluated the ability of B. sorokiniana isolated from spring barley leaves to survive in plant residuals of different crops (Dutbayev et al, 2022). However, there is not enough information about the severity of common root rot and the impact of the degree of disease damage on plant productivity in Kazakhstan.…”

Application of Risk-Oriented Approach for Improvement of the Environmental Security of the Urban Area

“…Analysis of experimental results of urban environment safety demonstrates that major portion of the investigations is devoted to determination of influence of negative chemical factors (toxic matters) on plants and human health [10][11][12][13]. This could be attributed only to the fact that high concentrations of toxic matters in air can influence on major portion of inhabitants [14], initiate acute intoxications, and require for significant resources of health care system to eliminate the consequences [15].…”