Influence du Biochar et du Mycotri sur le développement de la grande morelle (Solanum macrocarpon L.) et la densité de population des nématodes à galles sous serre

Octave BEHOUNDJA-KOTOKO; Fabert SOMAKOU; Nehal Tinon DJAOUGA MAMADOU; Manzidath ALAGBA; Ruffin DOSSOU AGBEDE; Hugues BAIMEY

doi:10.56109/aup-sna.v12i2.106

Authors

Octave BEHOUNDJA-KOTOKO Faculté d’Agronomie, Université de Parakou, BP 123, Parakou, Bénin https://orcid.org/0000-0002-4633-4124
Fabert SOMAKOU Faculté d’Agronomie, Université de Parakou, BP 123, Parakou, Bénin
Nehal Tinon DJAOUGA MAMADOU Université de Parakou https://orcid.org/0000-0002-4064-4535
Manzidath ALAGBA Faculté d’Agronomie, Université de Parakou, BP 123, Parakou, Bénin
Ruffin DOSSOU AGBEDE Faculté d’Agronomie, Université de Parakou, BP 123, Parakou, Bénin
Hugues BAIMEY Faculté d’Agronomie, Université de Parakou, BP 123, Parakou, Bénin https://orcid.org/0000-0002-6155-4416

DOI:

https://doi.org/10.56109/aup-sna.v12i2.106

Keywords:

Biochar, nightshade, Mycotri , root-knot nematode, Benin

Abstract

In order to reduce the degrading effects of chemical pesticides on the environment and food quality, new alternatives are being sought to control root-knot nematodes in vegetable crops. The present study analyzes the effect of biochar and a formulation (Mycotri) based on fungi and bacteria parasitizing root-knot nematodes in nightshade crops. It was carried out under greenhouse conditions in a complete randomized block design with eight treatments each repeated six times. The different treatments were: biochar (26.6 g/kg sterilized soil), Mycotri (2.6 g/kg sterilized soil) or their combination (40 g biochar and 4 g Mycotri for 1456 g sterilized soil). The results show that biochar, Mycotri and their combination improve soil pH. Biochar and its combination with Mycotri favor the increase of the leaf area of the plants and the mass of the leaves and roots. The gall index, number of galls and nematode population density in the soil were higher in the biochar treatments, while the nematode population density decreased in the roots in the presence of Mycotri. However, the amendment of biochar combined with Mycotri deserves special attention in the control of root-knot nematodes

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