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Genetic variability and heritability studies of some reproductive traits in cowpea (Vigna unguiculata (L.) Walp.)

dc.contributor.authorOmoigui, L.O.
dc.contributor.authorIshiyaku, M.F.
dc.contributor.authorKamara, A.Y.
dc.contributor.authorAlabi, S.O.
dc.contributor.authorMohammed, S.G.
dc.date.accessioned2019-12-04T11:18:09Z
dc.date.available2019-12-04T11:18:09Z
dc.date.issued2006
dc.identifier.citationOmoigui, L.O., Ishiyaku, M.F., Kamara, A.Y., Alabi, S.O. & Mohammed, S.G. (2006). Genetic variability and heritability studies of some reproductive traits in cowpea (Vigna unguiculate (L.) Walp.). African Journal of Biotechnology, 5(13), 1191-1195.
dc.identifier.issn1684-5315
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3079
dc.description.abstractThe success of most crop improvement programs largely depends upon the genetic variability and the heritability of desirable traits. The magnitude and type of genetic variability help the breeder to determine the selection criteria and breeding schemes to be used for improvement purposes. A screen house experiment was carried out at Samaru, Nigeria in 1999 and 2000 dry seasons to estimate the genotypic variability of some reproductive traits and their heritability in some selected cowpea varieties. Results of the study showed that there was considerable variation among cultivars for duration of reproductive phase and rate of photosynthate partitioning. Genotypic coefficients of variation were also high for days to first flower, 100-seed weight, plant height, and harvest index. Broad-sense heritability estimate (h2) was 98.9% for 100-seed weight, 94% for duration of reproductive phase, 84.5% for days to first flower, 83.9% for days to maturity, and 77.3% for harvest index. This information showed that there is sufficient genetic variance to warrant selection for improvement in the cowpea genotypes studied. We concluded that considerable progress in cowpea breeding could be achieved by exploiting these traits.
dc.language.isoen
dc.subjectCowpeas
dc.subjectReproductive Traits
dc.subjectHeritability
dc.subjectGenetic Variability
dc.subjectGerplasm
dc.subjectGenotypes
dc.titleGenetic variability and heritability studies of some reproductive traits in cowpea (Vigna unguiculata (L.) Walp.)
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationAhmadu Bello University
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectCowpea
cg.iitasubjectPests Of Plants
cg.iitasubjectNutrition
cg.iitasubjectHandling, Transport, Storage And Protection Of Agricultural Products
cg.iitasubjectFarm Management
cg.iitasubjectPlant Diseases
cg.iitasubjectSmallholder Farmers
cg.iitasubjectLivelihoods
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.iitasubjectFood Security
cg.iitasubjectDiseases Control
cg.accessibilitystatusOpen Access
local.dspaceid94545


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