Diversity of Nematodes on Banana (Musa Spp.) In Kenya Linked to Altitude and with a Focus on the Pathogenicity of Pratylenchus Goodeyi

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dc.contributor.authorNYANG’AU, Douglas
dc.contributor.authorATANDI, Janet
dc.contributor.authorCORTADA, Laura
dc.contributor.authorNCHORE, Shem
dc.contributor.authorMWANGI, Maina
dc.contributor.authorCOYNE, Danny
dc.date.accessioned2023-07-20T10:07:47Z
dc.date.available2023-07-20T10:07:47Z
dc.date.issued2022
dc.descriptionarticleen_US
dc.description.abstractBananas (Musa spp.) are considered the most important fruit crop in Kenya, grown mostly by smallholder farmers. However, in the past two decades production has declined and has largely been attributed to plant pathogens, including plant-parasitic nematodes. To assess the understanding and awareness that banana farmers have of nematodes, a survey was conducted. The incidence, abundance and distribution of nematodes in relation to altitude were determined for different banana types on 180 farms and the pathogenicity of Pratylenchus goodeyi, originating from three different altitudinal locations, was compared on two banana cultivars. Just 2.3% of farmers were aware of nematode damage and symptoms, none of whom applied any management measures. The highest abundance of nematodes was recorded at an altitude range of 1601-2000 m a.s.l., with Pratylenchus, Meloidogyne and Helicotylenchus being the predominant genera. Across all altitudinal locations, cooking banana had higher densities of nematodes than dessert bananas. In pots, P. goodeyi populations from Embu (1300 m a.s.l.) appeared more aggressive and with higher levels of multiplication than the population from Oyugis (1100 m a.s.l.). Cooking banana (‘Ng’ombe’) was more susceptible than dessert banana (‘Sukari Ndizi’). Nematode damage is more prominent in areas at higher altitude and on cooking banana cultivars. The findings provide key information in guiding informed and suitable management decision thresholds in relation to potential climate change.en_US
dc.description.sponsorshipGCE Phase II CGIAR Funden_US
dc.identifier.citationNyang’au, D., Atandi, J., Cortada, L., Nchore, S., Mwangi, M., & Coyne, D. (2021). Diversity of nematodes on banana (Musa spp.) in Kenya linked to altitude and with a focus on the pathogenicity of Pratylenchus goodeyi. Nematology, 24(2), 137-147.en_US
dc.identifier.otherDOI 10.1163/15685411-bja10119
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/26347
dc.language.isoenen_US
dc.publisherBrillen_US
dc.subjectclimate adaptationen_US
dc.subjectEast African Highland bananaen_US
dc.subjectHelicotylenchusen_US
dc.subjectMeloidogyneen_US
dc.subjectnematode surveyen_US
dc.subjectsmallholder farmersen_US
dc.subjectyield lossen_US
dc.titleDiversity of Nematodes on Banana (Musa Spp.) In Kenya Linked to Altitude and with a Focus on the Pathogenicity of Pratylenchus Goodeyien_US
dc.typeArticleen_US
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