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Combining ability analysis of resistance to mosaic virus disease in cassava

dc.contributor.authorLokko, Y.
dc.contributor.authorDixon, Alfred G.O.
dc.contributor.authorOffei, S.
dc.contributor.authorDanquah, E.Y.
dc.date.accessioned2019-12-04T11:18:08Z
dc.date.available2019-12-04T11:18:08Z
dc.date.issued2006
dc.identifier.citationLokko, Y., Dixon, A.G., Offei, S. & Danquah, E.Y. (2006). Combining ability analysis of resistance to mosaic virus disease in cassava. African Crop Science Journal, 14(3), 221-230.
dc.identifier.issn1021-9730
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3064
dc.description.abstractA North Carolina design II experiment, with three improved cassava (Mctnihot esculenta Crantz) accessions as the female parents, l5 cassava landraces and three improved cassava accessions as the male parents (3 x I 8), was evaluated in three environments in Nigeria to determine the mode of gene action and the combining ability, and also t() estimate heterosis for resistance to cassava mosaic disease (CMD), in various sources of resistance. General combining ability (GCA) effect clue to females and males was significant in each environment; while the GCA effect clue to males and the specific combining ability (scA) effect were significant across environments. The relative magnitude of the total GCA components to the total GCA plus SCA component, however, suggested that GCA was more important than SCA in controlling cMD resistance among the crosses. The test for heterosis was significant in the individual environments; one cross, involving the best general combiner, exhibited significant heterosis for resistance in all three environments. The implication of the findings in breeding for resistance to CMD is discussed.
dc.description.sponsorshipRockefeller Foundation
dc.language.isoen
dc.subjectCassava
dc.subjectHeterosis
dc.subjectAfrican Cassava Mosaic Virus
dc.subjectGeneral Combining Ability
dc.subjectSpecific Combining Ability
dc.subjectFemale Parents
dc.subjectGene
dc.subjectMale Parents
dc.subjectResistance
dc.subjectGenotypes
dc.subjectPolygenic
dc.titleCombining ability analysis of resistance to mosaic virus disease in cassava
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Ghana
cg.contributor.affiliationInternational Atomic Energy Agency
cg.coverage.regionAfrica
cg.coverage.regionAcp
cg.coverage.regionWest Africa
cg.coverage.regionEurope
cg.coverage.countryNigeria
cg.coverage.countryGhana
cg.coverage.countryAustria
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectFarm Management
cg.iitasubjectDisease Control
cg.iitasubjectImpact Assessment
cg.iitasubjectLivelihoods
cg.iitasubjectCassava
cg.iitasubjectPlant Breeding
cg.iitasubjectPests Of Plants
cg.iitasubjectHandling, Transport, Storage And Protection Of Agricultural Products
cg.iitasubjectGenetic Improvement
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Production
cg.accessibilitystatusLimited Access
local.dspaceid94530


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