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dc.contributor.authorJiwuba, L.
dc.contributor.authorDanquah, A.
dc.contributor.authorAsante, I.
dc.contributor.authorBlay, E.
dc.contributor.authorOnyeka, J.
dc.contributor.authorDanquah, E.
dc.contributor.authorEgesi, C.
dc.date.accessioned2021-02-17T13:33:39Z
dc.date.available2021-02-17T13:33:39Z
dc.date.issued2020-09-04
dc.identifier.citationJiwuba, L., Danquah, A., Asante, I., Blay, E., Onyeka, J., Danquah, E. & Egesi, C. (2020). Genotype by environment interaction on resistance to cassava green mite associated traits and effects on yield performance of cassava genotypes in Nigeria. Frontiers in Plant Science, 11, 1344: 1-13.
dc.identifier.issn1664-462X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7046
dc.description.abstractCassava is the main source of carbohydrate for over 70% of the people in Nigeria, the world’s largest producer and consumer of the crop. The yields of cassava are, however, relatively low in Nigeria largely due to pests and disease infections that significantly lead to inconsistencies in productivity of cassava genotypes in various environments. Fifty-eight F1 hybrid cassava genotypes plus their two parents which served as check varieties were evaluated in three locations for two years (that is six environments). The objectives of the study were to evaluate genotype by environment interactions (GEI) on resistance to cassava green mite [CGM, Mononychellus tanajoa (Bondar)] associated traits and effects on yield performance of cassava genotypes in Nigeria and to identify superior genotypes that exhibit high stability which combine CGM resistance and high fresh root yield with general and specific environmental adaptation using additive main effects and multiplicative interaction (AMMI) and genotype stability index (GSI). The combined analysis of variance based on AMMI revealed significant genotype, environment, and genotype by environment interactions (GEI) for all traits. The percentage variation due to environment was higher than the percentage variation due to genotype for cassava green mite severity (CGMS), leaf retention (LR), root dry matter content (RDMC), and fresh root yield (FRY) indicating that environment greatly influenced the expression of these traits. The percentage variation due to GEI accounted for higher percentage variation than that of genotype and environment separately for all traits, indicating the influence of genotype by environment interaction on expression of the traits. These findings reveal that screening/evaluating for these traits needs multi-environment trials. According to GSI ranking, genotypes G31 (IBA131794), G19 (IBA131762), the check variety G52 (TMEB778), and G11 (IBA131748) were identified as the most stable and most resistant to CGM which also combine high FRY and other useful agronomic traits, implying that these traits in cassava can even be incorporated as preferred by farmers. These genotypes can be tested in more environments to determine their adaptability and potential recommendation for release to farmers for growing.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.description.sponsorshipUKAid
dc.format.extent1-13
dc.language.isoen
dc.subjectCassava
dc.subjectGenotype Environment Interaction
dc.subjectPests of Plants
dc.subjectPlant Diseases
dc.subjectGenotypes
dc.subjectNigeria
dc.titleGenotype by environment interaction on resistance to cassava green mite associated traits and effects on yield performance of cassava genotypes in Nigeria
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationNational Root Crops Research Institute, Nigeria
cg.contributor.affiliationUniversity of Ghana
cg.contributor.affiliationCornell University
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidJIWUBA:2020
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectCassava
cg.iitasubjectDisease Control
cg.iitasubjectFood Security
cg.iitasubjectGenetic Improvement
cg.iitasubjectPests of Plants
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPlant Production
cg.journalFrontiers in Plant Science
cg.notesOpen Access Journal; Published online: 04 Sept 2020
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.3389/fpls.2020.572200
cg.iitaauthor.identifierChiedozie Egesi: 0000-0002-9063-2727
cg.futureupdate.requiredNo


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