TITLE:
Evaluation of Soybean Genotypes (Glycine max L. Merr.) Susceptibility to Parasitic Nematodes in Western Part of Burkina Faso
AUTHORS:
Gilles Ibié Thio, Bouma Thio, Nofou Ouédraogo, Frank Essem, Inoussa Drabo, Oumar Boro, Fabrice Wendyam Nikiema, Pierre Alexandre Eric Djifaby Sombié, David Yago, Hervé Bépio Bama, Mahamadou Sawadogo, Paco Sérémé
KEYWORDS:
Parasitic Nematodes, Susceptibility, Genotypes, Soybean, Burkina Faso
JOURNAL NAME:
Agricultural Sciences,
Vol.14 No.1,
January
19,
2023
ABSTRACT: Parasitic nematodes have been reported as one of the major constraints to soybean production worldwide. The majority of nematodes are so-called “free-living” and feed mainly on bacteria, fungi, protozoa and other nematodes. In Burkina Faso, the presence of parasitic nematodes has been reported in crops such as rice and sorghum. The objective of this study was to identify the genera and species of nematodes associated with soybean production in Burkina Faso. Investigations were carried out on 24 genotypes of a medium-maturity group of soybean at the Farako-Ba research station. Soil samples were taken from the trial soil before its installation. At harvest, soil samples with roots were taken from each genotype in the elementary plots. The composite sample is represented by 4 lots of soil samples with roots. Extractions and counts of nematodes were performed on the different lots. In total, 7 genera of plant-parasitic nematodes associated with soybean were identified. Among these genera, Pratylenchus (100% of infected genotypes), Helicotylenchus (97.28%) and Scutellonema (94.44%) were the most prevalent in terms of frequency and abundance. Some soybean genotypes were less susceptible to the genus Pratylenchus is known to be highly pathogenic in soybean. These were mainly the genotypes TGX2025-10E, TGX2023-3E and TGX2025-14E.