Inheritance of time to flowering in cowpea (Vigna unguiculata (L.) Walp.)

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cg.authorship.typesCGIAR and developing country institute
cg.contributor.affiliationAhmadu Bello University
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Reading
cg.contributor.donorDepartment for International Development, United Kingdom
cg.coverage.countryNigeria
cg.coverage.countryUnited Kingdom
cg.coverage.iso3166-alpha2NG
cg.coverage.iso3166-alpha2GB
cg.coverage.regionAfrica
cg.coverage.regionACP
cg.coverage.regionWestern Africa
cg.coverage.regionEurope
cg.coverage.regionNorthern Europe
cg.identifier.doihttps://doi.org/10.1007/s10681-005-2435-0
cg.isijournalISI Journal
cg.issn0014-2336
cg.issue3
cg.journalEuphytica
cg.reviewStatusPeer Review
cg.subject.iitaCOWPEA
cg.subject.iitaPLANT GENETIC RESOURCES
cg.subject.iitaPLANT BREEDING
cg.subject.iitaLIVELIHOODS
cg.subject.iitaDISEASE CONTROL
cg.subject.iitaPLANT PRODUCTION
cg.subject.iitaGENETIC IMPROVEMENT
cg.subject.iitaHANDLING, TRANSPORT, STORAGE AND PROTECTION OF AGRICULTURAL PRODUCTS
cg.subject.iitaPESTS OF PLANTS
cg.volume142
dc.contributor.authorIshiyaku, M.
dc.contributor.authorSingh, B.
dc.contributor.authorCraufurd, Peter Q.
dc.date.accessioned2018-03-23T06:48:57Zen
dc.date.available2018-03-23T06:48:57Zen
dc.identifier.urihttps://hdl.handle.net/10568/91887
dc.titleInheritance of time to flowering in cowpea (Vigna unguiculata (L.) Walp.)en
dcterms.abstractTime to flowering and maturity is an important adaptive feature in annual crops, including cowpeas (Vigna unguiculata (L.) Walp.). In West and Central Africa, photoperiod is the most important environmental variable affecting time to flowering in cowpea. The inheritance of time from sowing to flowering (f) in cowpeas was studied by crossing a photoperiod-sensitive genotype Kanannnado to a photoperiod-insensitive variety IT97D-941-1. Sufficient seed of F1, F2, F3 and backcross populations were generated. The parental, F1, F2, F3 and the backcross populations were screened for f under long natural days (mean daylength 13.4 h per day) in the field and the parents, F1, F2 and backcross populations under short day (10 h per day) conditions. The result of the screening showed that photoperiod in the field was long enough to delay flowering of photoperiod-sensitive genotypes. Photoperiod-sensitivity was found to be partially dominant to insensitivity. Frequency distribution of the trait in the various populations indicated quantitative inheritance. Additive (d) and additive × dominance (j) interactions were the most important gene actions conditioning time to flowering. A narrow sense heritability of 86% was estimated for this trait. This will result in 26 days gain in time to flowering with 5% selection intensity from the F2 to F3 generation. At least seven major gene pairs, with an average delay of 6 days each, were estimated to control time to flowering in this cross.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationIshiyaku, M., Singh, B. & Craufurd, P. (2005). Inheritance of time to flowering in cowpea (Vigna unguiculata (L.) Walp.). Euphytica, 142(3), 291-300.en
dcterms.extentp. 291-300
dcterms.issued2005-04
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherSpringer
dcterms.subjectcowpeasen
dcterms.subjectfloweringen
dcterms.subjectgenesen
dcterms.subjectinheritanceen
dcterms.subjectphotoperioden
dcterms.subjectgenotypesen
dcterms.subjecthorticultureen
dcterms.subjectgeneticsen
dcterms.typeJournal Article

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