Show simple item record

Genetic variation in F2 populations and their potential in the improvement of grain yield in tef (Eragrostis tef)

dc.contributor.authorTefera, H.
dc.contributor.authorBelay, G.
dc.contributor.authorAssefa, K.
dc.date.accessioned2019-12-04T11:14:48Z
dc.date.available2019-12-04T11:14:48Z
dc.date.issued2008
dc.identifier.citationTefera, H., Belay, G. & Assefa, K. (2008). Genetic variation in F2 populations and their potential in the improvement of grain yield in tef (Eragrostis tef). Euphytica, 164(1), 105-111.
dc.identifier.issn0014-2336
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2858
dc.descriptionPublished online: 09 Feb 2008
dc.description.abstractTef is a staple cereal of Ethiopia in high demand by consumers. In order to cope up with this high consumer demand, productivity per unit of land must increase through the development and use of high-yielding varieties. To this effect, the National Tef Research Project has long been striving towards the development of high yielding varieties through direct selection from germplasm and concentrating favourable alleles through hybridization and selection, despite the tedious crossing technique. The objective of this study was to assess the degree of genetic variation in F2 populations of tef as a basis for improving grain yield. F2 populations from 12 crosses and their parents were grown at the Debre Zeit Agricultural Research Center, Ethiopia, and assessment was made on eight traits on individual plant basis. Eleven of the 12 crosses showed substantial genetic variation for grain yield and its components, indicating the potential for improvement through selection. Moreover, grain yield, plant weight and yield related traits showed moderate to high heritability values (17–80%). In all the crosses, tiller number, panicle weight, yield per panicle and panicle length showed significant (P ≤ 0.05) and positive association with grain yield. Considering the degree of genetic variation and heritability values, emphasis should be given to selected crosses in an effort to developing high-yielding tef varieties.
dc.description.sponsorshipMcKnight Foundation
dc.language.isoen
dc.subjectEragrostis Tef
dc.subjectF2 Populations
dc.subjectHighyielding Tef Varieties
dc.subjectYield
dc.subjectHeritability Tef
dc.subjectGermplasm
dc.subjectGenetic Variation
dc.subjectHeritability Values
dc.titleGenetic variation in F2 populations and their potential in the improvement of grain yield in tef (Eragrostis tef)
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationEthiopian Institute of Agricultural Research
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.regionSouthern Africa
cg.coverage.countryEthiopia
cg.coverage.countryMalawi
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectGrain Legumes
cg.iitasubjectGenetic Improvement
cg.iitasubjectPlant Production
cg.iitasubjectPlant Breeding
cg.iitasubjectFood Security
cg.iitasubjectFarm Management
cg.accessibilitystatusLimited Access
local.dspaceid93959
cg.identifier.doihttps://dx.doi.org/10.1007/s10681-008-9655-z


Files in this item

Thumbnail
Name:
tefera-genetic-2008.pdf
Size:
280.1Kb
Format:
PDF
View/Open

This item appears in the following Collection(s)

Show simple item record