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Seed metrics for genetic and shape determinations in African yam bean [Fabaceae] (Sphenostylis stenocarpa Hochst. Ex. A. Rich.) harms

dc.contributor.authorAdewale, B.D.
dc.contributor.authorKehinde, O.B.
dc.contributor.authorAremu, C.O.
dc.contributor.authorPopoola, J.O.
dc.contributor.authorDumet, D.J.
dc.date.accessioned2019-12-04T11:10:46Z
dc.date.available2019-12-04T11:10:46Z
dc.date.issued2010-04
dc.identifier.citationAdewale, B.D., Kehinde, O.B., Aremu, C.O., Popoola, J.O. & Dumet, D.J. (2010). Seed metrics for genetic and shape determinations in African yam bean [Fabaceae](Sphenostylis stenocarpa Hochst. Ex. A. Rich.) harms. African Journal of Plant Science, 4(4), 107-115.
dc.identifier.issn1996-0824
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2260
dc.descriptionOpen Access Journal
dc.description.abstractThe metric measures on seeds, their correlation and relationship are important for systematic breeding for seed yield and shape determination. Variations among eighty genotypes of African yam bean (AYB) for six metric seed characters (seed length, width and thickness and their ratios) were evaluated in this study. Paired comparison among the six characters revealed very high significance (P < 0.001), approving the six traits as unique parameters for evaluating AYB. They equally exhibited high and substantial genetic variance: the genotypic proportion of the total variation ranged between 90 and 97%, broad sense heritability (81 - 94%) and genetic advances (14 - 31%). Seed length and width had the highest joint inheritance of 99.04%, the least, 4.32% was between width and WT as depicted by coheritability. Positive and significant (P < 0.05) phenotypic and/or genotypic correlation existed between seed width and thickness, the three ratios and seed length with the ratios except WT. Non-significant negative correlation existed between seed thickness with LT and WT. There were very reliable and highly significant linear relationships between the seed traits except for length and width whose relationship was non-linear. Breeding concentration on any of these traits may simultaneously influence the others. The seed shape indices were the metric ratios and the flatness index; they described the common shapes of AYB seeds as: round/spherical, oval/ellipsoidal, oblong and rhomboid
dc.format.extent107-115
dc.language.isoen
dc.subjectSeed
dc.subjectYams
dc.subjectSeed Metrics
dc.subjectSeed Shape
dc.subjectCo-Heritability
dc.subjectFlatness Index
dc.subjectHeritability
dc.subjectAfrican Yam Bean
dc.subjectGenotypes
dc.subjectPlant Breeding
dc.titleSeed metrics for genetic and shape determinations in African yam bean [Fabaceae] (Sphenostylis stenocarpa Hochst. Ex. A. Rich.) harms
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationFederal University of Agriculture, Nigeria
cg.contributor.affiliationLadoke Akintola University of Technology
cg.identifier.urlhttp://www.academicjournals.org/ajps
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectGenetic Improvement
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPlant Production
cg.iitasubjectYam
cg.journalAfrican Journal of Plant Science
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid91816
cg.targetaudienceScientists


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