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dc.contributor.authorBankole, F.
dc.contributor.authorBadu-Apraku, B.
dc.contributor.authorSalami, A.O.
dc.contributor.authorFalade, T.D.O.
dc.contributor.authorBandyopadhyay, R.
dc.contributor.authorOrtega-Beltran, A.
dc.date.accessioned2022-06-10T08:40:07Z
dc.date.available2022-06-10T08:40:07Z
dc.date.issued2022
dc.identifier.citationBankole, F., Badu-Apraku, B., Salami, A.O., Falade, T.D.O., Bandyopadhyay, R. & Ortega-Beltran, A. (2022). Identification of early and extra-early maturing tropical maize inbred lines with multiple disease resistance for enhanced maize production and productivity in sub-Saharan Africa. Plant Disease, 1-31.
dc.identifier.issn0191-2917
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7504
dc.description.abstractMaize, a staple for millions across sub-Saharan Africa (SSA), faces major biotic constraints affecting production and safety of the crop. These include the northern corn leaf blight (NCLB), southern corn leaf blight (SCLB), Curvularia leaf spot (CLS), and aflatoxin contamination by Exserohilum turcicum, Bipolaris maydis, Curvularia lunata, and Aspergillus flavus, respectively. Farmers in SSA would benefit tremendously if high yielding maize hybrids with multiple disease resistance (MDR) were developed and commercialized. Forty-nine early-maturing (90-95 days to physiological maturity, EM) and 55 extra-early-maturing (80-85 days to physiological maturity, EEM) IITA inbred lines were identified as resistant to NCLB in field evaluations in multiple agro-ecologies of Nigeria in 2017 and 2018. From each maturity group, 30 most resistant inbreds were selected for evaluation for resistance to SCLB and CLS using a detached leaf assay. Additionally, the inbreds were screened for resistance to kernel rot and aflatoxin contamination using a kernel screening assay. Seven EM and six EEM maize inbreds were found to be highly resistant to the three foliar pathogens while ten inbreds were resistant to the foliar pathogens and supported significantly (P = 0.01) less aflatoxin accumulation than other inbreds. Inbreds having MDR should be tested extensively in hybrid combinations and commercialized. Large-scale use of maize hybrids with MDR would i) increase maize production and productivity, and ii) reduce losses caused by aflatoxin contamination. Overall, planting of EM and EEM maize hybrids with MDR would contribute to food security, reduced aflatoxin exposure, and increased incomes of maize farmers in SSA.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-31
dc.language.isoen
dc.subjectMaize
dc.subjectMaturity
dc.subjectDisease Resistance
dc.subjectProduction
dc.subjectYields
dc.subjectSub-Saharan Africa
dc.titleIdentification of early and extra-early maturing tropical maize inbred lines with multiple disease resistance for enhanced maize production and productivity in sub-Saharan Africa
dc.typeJournal Article
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.crpMaize
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationObafemi Awolowo University
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.researchthemeSocial Science and Agribusiness
cg.identifier.bibtexciteidBANKOLE:2022
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgribusiness
cg.iitasubjectAgronomy
cg.iitasubjectFood Security
cg.iitasubjectMaize
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Production
cg.journalPlant Disease
cg.notesPublished online: 08 Apr 2022
cg.accessibilitystatusLimited Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCopyrighted; all rights reserved
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1094/pdis-12-21-2788-re
cg.iitaauthor.identifierBAFFOUR BADU-APRAKU: 0000-0003-0113-5487
cg.iitaauthor.identifierTitilayo Falade: 0000-0001-5562-7861
cg.iitaauthor.identifierRanajit Bandyopadhyay: 0000-0003-2422-4298
cg.iitaauthor.identifierAlejandro Ortega-Beltran: 0000-0003-3747-8094
cg.futureupdate.requiredNo


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