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Research paper

Interactive Effect of Blackeye cowpea mosaic virus and Cucumber mosaic virus on Vigna unguiculata

Faculty of Agriculture, Department of Crop Science and Horticulture, Federal University, Oye-Ekiti P.M.B. 374, Nigeria

Peer review under responsibility of Chinese Society for Horticultural Science (CSHS) and Institute of Vegetables and Flowers (IVF), Chinese Academy of Agricultural Sciences (CAAS)

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Abstract

This research tries to demonstrate physiological effect of combined infection of two viruses on growth parameter of cowpea plant as demonstrated through symptom expression. Blackeye cowpea mosaic virus (BlCMV) and Cucumber mosaic virus (CMV) were transmitted to cowpea plants by mechanical rub inoculation. This study showed that the differences in stem height and final aboveground fresh weight of cowpea plants inoculated with mixed infection with CMV and BlCMV were significantly less than those of plants inoculated with a single virus. Likewise cowpea plants inoculated with either virus alone or with CMV and BlCMV mixed infection had less stem height and aboveground fresh weight than the control. The mixed infection of BlCMV and CMV caused significant increase in the severity of symptoms in cowpea and also in the height using factors analysis and Abbott's equation. Symptom severity rating scale used, demonstrated statistical proof for physiological effect based on symptom severity for co-infection. A three phase disease symptom severity expression revealed disease severity for each viral treatment associated with host plant.

Keywords

interactioncowpeavirus mixed infectionseveritysymptom

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Horticultural Plant Journal
Volume 5 Issue 2,
March 2019
Pages 88-92
DOI: 10.1016/j.hpj.2019.01.001
Cite this article:
Fajinmi AA. Interactive Effect of Blackeye cowpea mosaic virus and Cucumber mosaic virus on Vigna unguiculata. Horticultural Plant Journal, 2019, 5(2): 88-92. https://doi.org/10.1016/j.hpj.2019.01.001

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Received: 09 August 2018
Revised: 09 October 2018
Accepted: 21 November 2018
Published: 04 January 2019
© 2019 Chinese Society for Horticultural Science (CSHS) and Institute of Vegetables and Flowers (IVF), Chinese Academy of Agricultural Sciences (CAAS).

This is an open access article under the CC˜BY-NC-ND license. (http://creativecommons.org/licenses/by-nc-nd/4.0/)
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