Accepted 9th June, 2014
The appraisal of genetic variability is basic for the purpose of to identify the most important traits in Ethiopian mustard breeding program. The objective of the study was to estimate variability, heritability and genetic advance on thirty six morphological characters of Ethiopian mustard (Brassica carinata) genotypes were evaluated at Debre Tabor, Ethiopia. The experiment was laid out in simple lattice design. ANOVA of the experiment showed highly significant (p<0.01) for day of maturity, grain filling period, secondary branches per plant, harvest index, days of flowering, plant height, primary branches per plant, biomass per plot, number of seeds per pod, seed yield per plot, oil content and oil yield per plot showed highly significant (p<0.01) difference among the tested genotypes. However, characters like number of pods per plant, 1000-seed weight and length of pod was not significant. The magnitudes of all characters had high PCV values except days to maturity, days to flowering, plant height and oil content. PCV and GCV were high for seed yield per hectare, oil yield per plot, harvest index, number of pods per plant, biomass per plot and secondary branches per plant. High heritability was coupled with high genetic advance as percent of mean for plant height, grain filling period, secondary branches per plant, number of pods per plant biomass per plot, seed yield per plot and oil yield per plot.
Keywords: Ethiopian mustard, genetic advance, genetic variability, heritability