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Table 3 Estimates of variance components (VC) and narrow sense heritability (h2n) of measured traits and relative efficiency of indirect selection (RSE) for improvement of DFY in evaluated genotypes of tall fescue in a single harvest analysis

From: Genetic parameters and selection in full-sib families of tall fescue using best linear unbiased prediction (BLUP) analysis

  Spring harvest Summer harvest Autumn harvest
VC DFY H CD NS FL DFY H CD DFY H CD
\({\sigma}_A^2\) 5121.79 99.56 11.43 44.5 11.78 1384.67 35.79 9.7 4102.92 64.52 13.53
\({\sigma}_p^2\) 28,171.93 366.01 40.67 149.71 47.57 8308.06 141.04 36.6 26,202.41 278.39 52.37
\({h}_n^2\pm \mathrm{S}E\) 0.18 ± 0.03 0.27 ± 0.03 0.28 ± 0.03 0.29 ± 0.04 0.24 ± 0.04 0.16 ± 0.04 0.25 ± 0.03 0.26 ± 0.04 0.15 ± 0.04 0.23 ± 0.04 0.25 ± 0.05
Ry 52.87 9.03 3.12 6.20 2.89 25.52 5.19 2.75 42.49 6.71 3.16
CRy 53.84 54.18 53.14 29 24.47 26.02 43.88 44.67
RSE 1.01 1.02 1 0.54 1.03 1.01 1.03 1.05
  1. DFY dry forage yield (g/plant), H plant height (cm/plant), CD crown diameter (cm/plant), NS number of stems per plant, FL Flowering time
  2. σ2A additive and σ2p phenotypic variance, h2n narrow sense heritability, SE standard error, Ry response to selection, CRy correlated response to selection