Effect of Azadirachta indica extract on the radial growth of some test fungi isolated from two varieties of cocoyam (Colocasia esculenta L.) corms and cormels in some markets in Plateau State, Nigeria
Keywords:
Radial growth, antifungal effect, Azadirachta indica, cocoyam varieties, Plateau State.Abstract
Antifungal effect of aqueous and ethanol extracts of Azadirachta indica on the radial growth of fungal pathogens of stored cocoyam corms and cormels was investigated. Four different extract concentrations were used from the plant leaves. Pathogenicity test showed that: Alternaria alternata, Fusarium oxysporum, Verticilium lateritium, Botrydiplodia theobramae, Colletotricum coccoides, Phythium myriotylum, Fusarium verticillioides, Rhizopus stolonifer and Geotricum candidum induced rot in both varieties of healthy cocoyam corms and cormels after 7 days of inoculation. The highest aqueous extract inhibition recorded was 81.11% on V. lateritium at 10% while the least inhibitory effect was 18.35% observed at 2.5% on G. candidum. Meanwhile, the ethanol extract gave a highly significant (P<0.05) inhibitory effect of 87.21% at 10% and the least was 26.80% at 2.5% on A.alternata and V. lateritium respectively compared to the rest as recorded in aqueous extract at the same level of concentrations (10%). The fungitoxic potential of this plant extract on rot inducing fungi of stored cocoyam corms and cormels is indicative of its use to farmers as alternative to commercial or synthetic fungicides destroying our ecosystem and health.Â
Metrics
Published
How to Cite
Issue
Section
License
Authors who publish with Journal of Phytopathology and Disease Management agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under the Creative Commons Attribution-Non Commercial License (CC BY-NC). This allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Archives of Agricultural Sciences Journal is an Open Access Journal, and articles published are distributed under the terms of the Creative Commons Attribution-Non Commercial License (CC BY-NC). Readers may copy, distribute, and display the work for non commercial purposes with the proper citation of the original work. However, the journal retains the right to exploit subsidiary rights on behalf of the authors.
- Authors are able to enter into separate, additional contractural arrangements for the non-exclusive distribution of the journal's published version of the work (e.g. post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process with full disclosure to the journal, as it can lead to productive exchanges, as well as earlier and greater citation of published work. Following publication in Archives of Agricultural Sciences Journal, the author should update the repository, and include a citation and link to the published work.
Click here for more information on Licensing policy