Table 3.

Estimates of variance components (VC) 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 a single harvest 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

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

σ²_A additive and σ²_p phenotypic variance, h²_n narrow sense heritability, SE standard error, R_y response to selection, CR_y correlated response to selection