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dc.contributor.authorIseki, K.
dc.contributor.authorOlaleye, O.
dc.contributor.authorIshikawa, H.
dc.date.accessioned2019-12-04T11:37:32Z
dc.date.available2019-12-04T11:37:32Z
dc.date.issued2019-10-15
dc.identifier.citationIseki, K., Olaleye, O. & Ishikawa, H. (2019). Intra-plant variation in seed weight and seed protein content of cowpea. Plant Production Science, 1-11.
dc.identifier.issn1343-943X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/6525
dc.descriptionOpen Access Journal
dc.description.abstractSeed size and protein content are the major breeding objectives for cowpeas (Vigna unguiculata). However, intra-plant variation in these traits causes heterogeneous seed quality and seed depreciation. To determine the causes and severity of intra-plant variation in cowpea single seed weight and protein content, seeds from individual plants were analyzed in relation to their positional effects. Associations between positional variables and seed traits were revealed by additive Bayesian network analysis, and the graphical models were compared for different accessions. Intra-plant variation in single seed weight and protein content were large compared to the variations in genetic resources, and these variations are thought to be related to the source/sink ratio within a plant. In accessions with longer flowering periods, the later-flowering peduncles on the upper nodes produced comparatively larger seeds due to a greater availability of assimilated carbon from leaves that maintain their greenness. While, in accessions with shorter flowering periods, the earlier-flowering peduncles on the lower nodes produced relatively larger seeds because less carbon is available at the later filling periods due to rapid senescence. For all accessions, protein content was higher in seeds derived from later-flowering peduncles and in pods with lower seed numbers. The nitrogen source/sink ratio may be higher in the later filling period because of a smaller number of filling seeds and a higher availability of nitrogen remobilized from senescing leaves and stems.
dc.description.sponsorshipJapanese Ministry of Agriculture, Forestry and Fisheries
dc.format.extent1-11
dc.language.isoen
dc.rightsCC-BY-4.0
dc.subjectCowpeas
dc.subjectProtein Content
dc.subjectSeed Weight
dc.subjectSeed Quality
dc.titleIntra-plant variation in seed weight and seed protein content of cowpea
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpGrain Legumes
cg.contributor.affiliationJapan International Research Center for Agricultural Sciences
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionAsia
cg.coverage.regionEast Asia
cg.coverage.regionWest Africa
cg.coverage.countryJapan
cg.coverage.countryNigeria
cg.creator.identifierHaruki Ishikawa: 0000-0001-6215-2622
cg.researchthemePLANT PRODUCTION & HEALTH
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectCowpea
cg.iitasubjectGrain Legumes
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalPlant Production Science
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid109804
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1080/1343943X.2019.1677161


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