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

Table 4 Estimates of variance components and narrow sense heritability (h²_n) of measured traits and relative efficiency of indirect selection (RSE) for improvement of DFY in evaluated genotypes of tall fescue in multiple harvest analysis

Variance component	DFY	H	CD	NS	FL
\({\sigma}_A^2\)	4350.66	75.60	12.61	71.22	9.50
\({\sigma}_p^2\)	19,102.97	223.52	30.22	189.56	31.22
\({h}_n^2\pm \mathrm{S}E\)	0.22 ± 0.04	0.32 ± 0.04	0.41 ± 0.04	0.37 ± 0.02	0.30 ± 0.03
R_y	53.21	8.37	3.94	8.91	2.93
CR_y	–	54.12	60.55	56.17	30.47
RSE	–	1.01	1.13	1.05	0.57

DFY dry forage yield (g/plant), PH plant height (cm/plant), CD crown diameter (cm/plant), NS number of stems per plant, FL flowering time, σ²_A and σ²_p additive and phenotypic variance, respectively, h²_n narrow sense heritability, SE standard error, R response to selection (%), CR correlated response to selection

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