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Testcross performance and combining ability of early maturing maize inbreds under multiple-stress environments

dc.contributor.authorAnnor, B.
dc.contributor.authorBadu-Apraku, B.
dc.contributor.authorNyadanu, D.
dc.contributor.authorAkromah, R.
dc.contributor.authorFakorede, M.A.
dc.date.accessioned2019-12-04T11:37:24Z
dc.date.available2019-12-04T11:37:24Z
dc.date.issued2019
dc.identifier.citationAnnor, B., Badu-Apraku, B., Nyadanu, D., Akromah, R. & Fakorede, M.A. (2019). Testcross performance and combining ability of early maturing maize inbreds under multiple-stress environments. Scientific Reports, 9(1), 1-11.
dc.identifier.issn2045-2322
dc.identifier.urihttps://hdl.handle.net/20.500.12478/6503
dc.descriptionOpen Access Journal; Published online: 24 Sept 2019
dc.description.abstractAvailability of multiple-stress tolerant maize is critical for improvement in maize production in West and Central Africa (WCA). A study was carried out to (i) assess a set of inbred lines for combining ability under stressed and optimal conditions, (ii) determine the performance of the testcrosses under different conditions, and (iii) identify outstanding hybrids across the conditions. Two hundred and five testcrosses were planted with five hybrid checks under Striga-infested, low soil nitrogen, drought and optimal conditions between 2015 and 2016 in Nigeria. The grain yield inheritance under optimal condition was largely regulated by additive gene effect whereas non-additive gene effects largely regulated grain yield under the three stresses. Four of the inbreds had significant positive general combining ability effects each under low N and drought, and three under Striga infestation for grain yield. The inbreds could be vital sources of beneficial alleles for development and improvement of tropical yellow maize hybrids and populations. Hybrids TZEI 443 x ENT 13 and TZEI 462 x TZEI 10 were high yielding and stable; they out-performed the three early maturing released hybrids in WCA. The new hybrids should be extensively assessed and released in the sub-region to improve food security.
dc.description.sponsorshipDrought Tolerant Maize for Africa
dc.format.extent1-11
dc.language.isoen
dc.rightsCC-BY-4.0
dc.subjectMaize
dc.subjectFood Security
dc.subjectStriga
dc.subjectHybrids
dc.subjectWest Africa
dc.subjectInbred Lines
dc.subjectStress
dc.titleTestcross performance and combining ability of early maturing maize inbreds under multiple-stress environments
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpMaize
cg.contributor.affiliationCrops Research Institute, Ghana
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationCocoa Research Institute of Ghana
cg.contributor.affiliationKwame Nkrumah University of Science and Technology
cg.contributor.affiliationObafemi Awolowo University
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryMali
cg.coverage.countryNigeria
cg.creator.identifierBAFFOUR BADU-APRAKU: 0000-0003-0113-5487
cg.researchthemeBIOTECH & PLANT BREEDING
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectFood Security
cg.iitasubjectMaize
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.journalScientific Reports
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid108248
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1038/s41598-019-50345-3


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