Pathogenicity of Bipolaris Spp. Isolates Causes Root Rot in Wheat Plants

Authors

DOI:

https://doi.org/10.24925/turjaf.v11i3.424-431.4840

Keywords:

Kök çürüklüğü, Agro-ekoloji, Bipolaris sorokiniana, B. spicifera, B. australiensis

Abstract

Bipolaris sorokiniana is one of the most important diseases causing root rot in wheat and barley. The seed, spike, leaf and root of wheat and barley were affected with the fungus that caused significant loss of yields in plants. Bipolaris spp. isolated from wheat plants showing rot symptoms in the root and crown collected from different agro ecological regions were identified morphologically by conidial characteristics. Forty-nine isolates identified as B. sorokiniana, B. spicifera and B. australiensis were used in this study. As a result of the pathogenicity experiment, it was determined that all B. sorokiniana were pathogenic except two isolates and their diseases severity was between 50% and 90%. Only one B. spicifera was identified as a weak pathogen in plants, while none of B. australiensis has showed any disease symptoms. Additionally, B. sorokiniana caused significant decreases in fresh weight of plants when compared to controls. On the contrary of this result, it has determined increasing of the weight in the four isolates of B. spicifera. In conclusion, B. sorokiniana isolates from all agro-ecological regions caused severe root rot diseases and exhibited significant decrease in plant weight. On the other hand, it has been observed that isolates of B. spicifera cause weak disease symptoms in the roots of wheat plants, whereas isolates of B. australiensis do not cause disease in the roots of the plants and do not affect the plant weight negatively.

Author Biography

Berna Tunalı, Ondokuz Mayis University , Agricultural FacultyDepartment of Plant Protection

Plant Pthology

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Published

26.03.2023

How to Cite

Tunalı, B., Maldar, B. M., Kansu, B., & Ölmez, F. (2023). Pathogenicity of Bipolaris Spp. Isolates Causes Root Rot in Wheat Plants. Turkish Journal of Agriculture - Food Science and Technology, 11(3), 424–430. https://doi.org/10.24925/turjaf.v11i3.424-431.4840

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Section

Research Paper