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Association studies between grain yield and agronomic traits of a MARS maize (Zea mays L.) population under drought and non-stress condition

dc.contributor.authorBankole, F.
dc.contributor.authorMenkir, A.
dc.contributor.authorOlaoye, G.
dc.contributor.authorOlakojo, O.
dc.contributor.authorGedil, M.
dc.date.accessioned2019-12-04T11:39:08Z
dc.date.available2019-12-04T11:39:08Z
dc.date.issued2019-10-30
dc.identifier.citationBankole, F., Menkir, A., Olaoye, G., Olakojo, O. & Gedil, M. (2019). Association studies between grain yield and agronomic traits of a MARS maize (Zea mays L.) population under drought and non-stress condition. Acta Agriculturae Slovenica, 114(1), 75-84.
dc.identifier.issn1581-9175
dc.identifier.urihttps://hdl.handle.net/20.500.12478/6550
dc.descriptionOpen Access Journal
dc.description.abstractThe study aimed at examining the associations between yield and other traits under drought stress and non-stress conditions. A total of 150 MARS testcrosses were evaluated under both conditions at the International Institute of Tropical Agriculture substation for two years under during the dry season. Genotypic and phenotypic correlation, multiple stepwise regression and path co-efficient analyses were carried out to examine the relationship among the traits under both environments. Results showed anthesis-silking interval, days to silking, husk cover and plant aspect were significantly associated with yield under drought condition at both genotypic and phenotypic levels. Yield was positively correlated with plant and ear height but had a negative correlation with plant and ear aspect at both levels under well-watered condition. Regression analysis showed that ears per plant, plant aspect, ear aspect, days to silking, leaf death and plant height had a direct effect on yield, contributing a total of 71.1 % of observed variation under drought, while ears per plant, ear aspect, plant aspect, days to pollen shed, days to silking and plant height contributed about 31.42 % to yield under well-watered conditions. The study concluded that these traits be used as selection criteria as it will aid improvement of maize yield.
dc.format.extent75-84
dc.language.isoen
dc.language.isoother
dc.rightsCC-BY-NC-ND-4.0
dc.subjectMaize
dc.subjectAssociations
dc.subjectGrain
dc.subjectYields
dc.subjectDrought
dc.subjectPhenotypic Variation
dc.subjectAbiotic Stress
dc.subjectBiotic Stress
dc.titleAssociation studies between grain yield and agronomic traits of a MARS maize (Zea mays L.) population under drought and non-stress condition
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpMaize
cg.contributor.affiliationUniversity of Ilorin
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.creator.identifierAbebe Menkir: 0000-0002-5907-9177
cg.creator.identifierMelaku Gedil: 0000-0002-6258-6014
cg.researchthemeBIOTECH & PLANT BREEDING
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectGenetic Improvement
cg.iitasubjectMaize
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.journalActa Agriculturae Slovenica
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid110087
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.14720/aas.2019.114.1.9.


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