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Plant parasitic nematodes in the soil and roots of winter wheat grown in crop rotation and long-term monoculture

Kinga Katarzyna Zato�1,2*, Andrzej Tomasz Skwiercz3, Ewa Adamiak3, Patrycja Szel�gowska1, Grzegorz Hury4

 

1 Department of Chemistry, Microbiology and Environmental Biotechnology, West Pomeranian University of Technology in Szczecin, Szczecin, Poland

2 Department of Fisheries Management and Water Protection, West Pomeranian University of Technology in Szczecin, Szczecin, Poland

3 Department of Phytopathology and Entomology, University of Warmia and Mazury, Olsztyn, Poland

4 Department of Agronomy, West Pomeranian University of Technology in Szczecin, Szczecin, Poland

Received: December 27, 2017

Accepted: June 19, 2018

*Corresponding address:

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Abstract

The species structure of plant parasitic nematode populations from the rhizosphere of winter wheat grown with crop rotation or in 48-year-old monoculture was analyzed and compared. Dominating species: Bitylenchus dubius, Merlinius microdorus, Paratylenchus neglectus and Heterodera avenae, in monoculture plots, had higher populations than in crop rotation plots. Heterodera avenae eggs and larvae were infected by pathogenic fungi in 68% of the monoculture crops (vs. 65–66% of the cysts from crop rotation), 12–20% of Paratylenchus sp. specimens were colonized by bacteria, mainly by Bacillus penetrans. This study shows nematological changes occurring in long-term wheat breeding, thus providing additional information necessary to fight dangerous viral vectors of the examined cereal.

 

Key words: nematodes, monoculture, pathogenic fungi, vector of cereal virus, winter wheat

 
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