Quantitative digital imaging of banana growth suppression by plant parasitic nematodes

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cg.authorship.typesCGIAR and advanced research instituteen_US
cg.contributor.affiliationUniversity of Leedsen_US
cg.contributor.affiliationInternational Institute of Tropical Agricultureen_US
cg.contributor.crpRoots, Tubers and Bananasen_US
cg.contributor.donorBiotechnology and Biological Sciences Research Council, United Kingdomen_US
cg.coverage.countryUgandaen_US
cg.coverage.iso3166-alpha2UGen_US
cg.coverage.regionAfricaen_US
cg.coverage.regionEastern Africaen_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.1371/journal.pone.0053355en_US
cg.issn1932-6203en_US
cg.issue12en_US
cg.journalPLOS ONEen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.iitaBANANAen_US
cg.volume7en_US
dc.contributor.authorRoderick, H.en_US
dc.contributor.authorMbiru, E.en_US
dc.contributor.authorCoyne, Danny L.en_US
dc.contributor.authorTripathi, L.en_US
dc.contributor.authorAtkinson, H.J.en_US
dc.date.accessioned2017-05-03T08:45:44Zen_US
dc.date.available2017-05-03T08:45:44Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/80857en_US
dc.titleQuantitative digital imaging of banana growth suppression by plant parasitic nematodesen_US
dcterms.abstractA digital camera fitted with a hemispherical lens was used to generate canopy leaf area index (LAI) values for a banana (Musa spp.) field trial with the aim of establishing a method for monitoring stresses on tall crop plants. The trial in Uganda consisted of two cultivars susceptible to nematodes, a plantain, Gonja manjaya and an East African Highland banana, Mbwazirume, plus a nematode resistant dessert banana, Yangambi km5. A comparative approach included adding a mixed population of Radopholus similis, Helicotylenchus multicinctus and Meloidogyne spp. to the soil around half the plants of each cultivar prior to field planting. Measurements of LAI were made fortnightly from 106 days post-planting over two successive cropping cycles. The highest mean LAI during the first cycle for Gonja manjaya was suppressed to 74.863.5% by the addition of nematodes, while for Mbwazirume the values were reduced to 71.161.9%. During the second cycle these values were 69.262.2% and 72.262.7%, respectively. Reductions in LAI values were validated as due to the biotic stress by assessing nematode numbers in roots and the necrosis they caused at each of two harvests and the relationship is described. Yield losses, including a component due to toppled plants, were 35.3% and 55.3% for Gonja manjaya and 31.4% and 55.8% for Mbwazirume, at first and second harvests respectively. Yangambi km5 showed no decrease in LAI and yield in the presence of nematodes at both harvests. LAI estimated by hemispherical photography provided a rapid basis for detecting biotic growth checks by nematodes on bananas, and demonstrated the potential of the approach for studies of growth checks to other tall crop plants caused by biotic or abiotic stresses.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.available2012-12-28en_US
dcterms.bibliographicCitationRoderick, H., Mbiru, E., Coyne, D., Tripathi, L. & Atkinson, H.J. (2012). Quantitative digital imaging of banana growth suppression by plant parasitic nematodes. PloS One, 7(12), e53355.en_US
dcterms.descriptionOpen Access Journalen_US
dcterms.extent1-10en_US
dcterms.issued2012en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherPublic Library of Scienceen_US
dcterms.subjectplant nematodesen_US
dcterms.subjectbananasen_US
dcterms.subjectgrowthen_US
dcterms.subjectbacterialen_US
dcterms.subjectxanthomonasen_US
dcterms.typeJournal Articleen_US

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