Weeds contaminating rape seeds grown in Western Siberia and phytosanitary risks associated with them
https://doi.org/10.69536/w5518-0227-2664-j
Abstract
The results of a four-year (2019–2022) monitoring of weed contamination of rapeseed seed samples grown in four crop-growing regions of the Siberian Federal District (SFD) – Kemerovo Oblast, Novosibirsk Oblast, Omsk Oblast and Altai Krai are presented. Diaspores (fruits and seeds) of 67 weed species belonging to 56 genera from 21 families were isolated from 433 analyzed samples of rapeseed seeds. The largest number of species in the studied samples are weeds from the Brassicaceae and Poaceae families. For samples of rapeseed originating from Omsk Oblast, the largest weed species diversity of 49 species was reported. For the studied samples of rapeseed seeds, the total number of diaspores of plants contaminating them was established. The contamination of the analyzed seeds of rapeseed grown in Western Siberia is quite high. The dominant species are hard-separable small-seeded weeds: Galium vaillantii, subgen. Galeopsis (incl. G. speciosa, G. bifida), Galeopsis ladanum, Chenopodium album, Fallopia convolvulus, Persicaria lapathifolia, Panicum miliaceum ssp. rude rale, Setaria pumila, Setaria viridis, Echinochloa crus-galli. Seeds and fruits of plant species that are of quarantine status for the Eurasian Economic Union (EAEU) were not detected in the studied samples. It has been established that 73% of weed species isolated from rapeseed seed samples are regulated in 33 other countries. The results obtained can be used for a preliminary assessment of the compliance of rapeseed seed lots grown in the main crop growing regions of Western Siberia with the phytosanitary requirements of potential importing countries.
About the Authors
T. V. Ebel
Tomsk Branch of FGBU “All-Russian Plant Quarantine Center” (FGBU “VNIIKR”)
Russian Federation
Russian Federation
Tatyana Ebel, Researcher of Testing laboratory
Tomsk, 634021
S. I. Mikhailova
Tomsk Branch of FGBU “All-Russian Plant Quarantine Center” (FGBU “VNIIKR”); National Research Tomsk State University
Russian Federation
Russian Federation
Svetlana Mikhailova, PhD in Biology, Leading Researcher, Tomsk Branch of FGBU “VNIIKR”; Associate Professor, National Research Tomsk State University
Tomsk, 634021
Tomsk, 634050
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Review
For citations:
Ebel T.V., Mikhailova S.I. Weeds contaminating rape seeds grown in Western Siberia and phytosanitary risks associated with them. Plant Health and Quarantine. 2023;(3):15-24. https://doi.org/10.69536/w5518-0227-2664-j
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