Boryana Dyulgerova, Darina VALCHEVA

Heritability, Variance Components and Genetic Advance of Yield and Some Yield Related Traits in Barley Doubled Haploid Lines

Anahtar Kelimeler:

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Heritability, Variance Components and Genetic Advance of Yield and Some Yield Related Traits in Barley Doubled Haploid Lines

A total of 23 doubled haploid lines of winter malting barley were grown in two successive seasons of 2011 and 2012 to study variability, heritability and genetic advance for grain yield and 5 yield related characters - spike length, spikelet number per a spike, grain number per a spike, grain weight per a spike and 1000 grains weight. Significant differences were observed among the doubled haploid lines regarding all the traits studied. Genotypic and phenotypic coefficients of variability were higher in grain yield and grain weight per a spike than other traits. Estimates of heritability ranged from 73,0 % for spikelet number per a spike to 81,6 % for 1000 grains weight, while grain yield showed 78,3% heritability. Heritability coupled with high genetic advance was observed for 1000 grains weight indicating the importance of this trait in yield improvement of winter malting barley

Keywords:

barley, variability, heritability genetic advance,

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