A Field Study on Determination of Nematode Diversity in Canola Fields in Tekirdağ, Turkey

Year 2023, Volume: 12 Issue: 1, 91 - 98, 27.03.2023

Lerzan Öztürk

https://doi.org/10.46810/tdfd.1224967

Cited By: 1

Abstract

Soils collected from 28 canola fields in Malkara, Süleymanpaşa, Muratlı, Hayrabolu, and Ergene districts of Tekirdağ were examined for the determination of nematode fauna. In the soils taken from 0-60 cm depth in each field, 28 genera of nematodes were recovered by the modified Baermann Funnel method. Of these, eight were bacterivores, three were fungivores, five were omnivores, three were predators, and the rest were plant-parasitic species. Nematodes in survey areas had colonizer-persister values ranging from 1 to 5. The maturity and community indices were also calculated and four were found as follows: Enrichment (E): 34.6±15.2; Maturity (MI): 2.68±0.05; Plant parasite (PPI): 2.69±0.39; Shannon's diversity (H'): 1.80±0.26. The predominant taxa were Filenchus (100%), Mesodorylaimus (92%), and Ditylenchus (85.1%). In terms of density in 100 cm3 soil, the highest values were found in the genus Acrobeloides (192 individuals/100 cm3 soil), and the number of Ditylenchus (57 individuals/100 cm3 soil), Filenchus (180 individuals/100 cm3 soil), and Mesodorylaimus (165 individuals/100 cm3 soil), individuals were also found high in some soils. The plant parasitic nematodes identified in canola fields include Boleodorus tylactus, Filenchus cylindricus, Filenchus sheri, Filenchus thornei, Geocenamus brevidens, Helicotylenchus digonicus, Malenchus fusiformis, Paratylenchus variabilis, Pratylenchoides alkani, Rotylenchus robustus, Tylenchorhynchus annulatus, and Tylenchorhynchus cylindricus.

Keywords

Nematode diversity, canola, Tekirdağ, Turkey

Project Number

yok

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