Isolation and Identification of Trichoderma species From South-South Geopolitical Zone of Nigeria

DOI

10.2991/978-94-6463-306-1_6How to use a DOI?

Keywords

Trichoderma harzianum; Antagonism; Eco-friendly; Pathogens; R. nigricans

Abstract

Yam rot caused by fungal pathogens has been of great concern to farmers in Nigeria and farmers of South-South Geopolitical zone of Nigeria are not exempted of this yam spoilage plight. This study was carried out on yam cultivated and harvested in the South-South of Nigeria to isolate and identify eco-friendly biological control agent (Trichoderma sp.) that could be used to control yam rot-causing fungi. The yam samples were purchased from local farmers in Rivers state. Trichoderma sp. was isolated from healthy yam peels, while the fungal pathogens were isolated from the rotting part of yam by serial dilution and then pour plating. The fungi isolated and identified as pathogens were Penicillium oxalicum, Penicillium roquefortii, Aspergillus niger, Aspergillus flavus, Rhizopus nigricans and Rhodotora sp., while the isolated biological control agent was identified as Trichoderma harzianum. An antagonism test of the T. harzianum against all the pathogens was conducted by co-culture method and the result in percentage inhibition were P. oxalicum (22.00%), P. roquefortii (26.50%), A. niger (49.80%), A. flavus (40.00%), Rhodotora sp. (31.58%) and no antagonism against R. nigricans (0%). The result obtained in this study revealed that Trichorderma harzianum has a broad inhibitory capability against yam rot-causing fungal pathogen. Therefore, T. harzianum can be effectively utilized by farmers to safely control the menace of yam rot caused by fungal pathogen.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - O. N. Akomah-Abadaike
AU  - M. C. Goddey
PY  - 2023
DA  - 2023/12/18
TI  - Isolation and Identification of Trichoderma species From South-South Geopolitical Zone of Nigeria
BT  - Proceedings of the 6th Biennial Conference of Organization for Women in Science for the Developing World Nigeria (OWSD 2023)
PB  - Atlantis Press
SP  - 87
EP  - 98
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-306-1_6
DO  - 10.2991/978-94-6463-306-1_6
ID  - Akomah-Abadaike2023
ER  -