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Genetic analysis of quantitative traits in cowpea [Vigna unguiculata (L.) Walp.] using six parameter genetic model.
- Source :
- Legume Research: An International Journal; Aug2016, Vol. 39 Issue 4, p502-509, 8p, 13 Charts
- Publication Year :
- 2016
-
Abstract
- Generation Mean Analysis was carried out using six basic generations in 3 different crosses of cowpea to determine suitable breeding methods. For most of the studied traits, additive, dominance, additive x additive, additive x dominance and dominance x dominance effects were significant. Additive effect significantly contributed for days to 1<superscript>st</superscript> flowering and seed yield per plant. Dominance effect was significant for the incidence of cowpea mosaic virus in family 1, while for pod maturity in family 2. Additive x dominance type of interaction contributed significantly for days to 1<superscript>st</superscript> flowering, days to pod maturity and seed yield per hectare. Duplicate type of epistasis was observed for days to 1<superscript>st</superscript> flowering and incidence of cowpea mosaic virus in family 1, number of pods per plant and pod length in family 2 and 3. The findings suggested that pureline, pedigree and recurrent selection could be followed in cowpea improvement. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02505371
- Volume :
- 39
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Legume Research: An International Journal
- Publication Type :
- Academic Journal
- Accession number :
- 117429598
- Full Text :
- https://doi.org/10.18805/lr.v0iOF.10285