Exploiting potential of trichoderma harzianum and glomus versiforme in mitigating cercospora leaf spot disease and improving cowpea growth

Iyabo O. Omomowo, Ayomide E. Fadiji, Olawale. I. Omomowo

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Background and Objective: Trichoderma species are of utmost importance in agro-biotechnological applications because, in their interactions with plant hosts, they out-compete most pathogenic microorganisms. This study aimed at exploiting the potential of Trichoderma harzianum together with Glomus versiforme and its mutants, in inhibiting cowpea leaf spot rot induced due to Cercospora canescens infestation and improving agronomic growth parameter in a screen house experiment. Materials and Methods: The experiment was designed using single and co-inoculation of the bioagents: in all, eleven treatments were applied, consisting of Glom_verwild, Glom_ver30, Glom_ver60, Glom_ver90, Trich_h, Glom_verwild+Trich_h, Glom_ver30+Trich_h, Glom_ver60+Trich_h, Glom_ver90+Trich_h, Pathogen alone and control. Cowpea growth yield parameters and disease severity were assessed after 7 weeks. Results: The deployed treatments improved agronomic growth parameters substantially (p<0.05) relative to control. Glom_ver 60+Trich_h treatment exerted the highest agronomic growth improvement yield. In addition, the best reduction in the incidence and severity of cowpea leaf spot disease was obtained using Glom_ver 60+Trich_h. A significantly higher germination rate in seeding, confirms both inhibitory and growth improvement potency of the bio inoculants treatment. Conclusion: This study's findings confirmed the beneficial impacts of the treatment of seed and soil with dual T. harzianum and G. versiforme, in improving the immunity of cowpea to Cercospora canescens leaf spot infection and improve cowpea growth.
Original languageEnglish
Pages (from-to)1276-1284
Number of pages9
JournalPakistan Journal of Biological Sciences
Volume23
Issue number10
DOIs
Publication statusPublished - 2020

Open Access - Access Right Statement

© 2020 Iyabo O. Omomowo et al . This is an open access article distributed under the terms of the creative commons attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

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