. 2017 Dec 20;131(3):703–720. doi: 10.1007/s00122-017-3030-1

Table 2.

Genotypic (σ ²_g; for multi-population training set, MP) or additive (σ ²_a; for individual populations), genotype-by-harvest (σ ²_gh), genotype-by-year (σ ²_gy), genotype-by-treatment (σ ²_gt), genotype-by-site (σ ²_gl) and experimental error (σ ²_ε) variance components and their associated standard errors (± SE) and R (repeatability; for MP training set) or h ²_n (narrow-sense heritability; for individual populations), estimated for HA (g DM per plot) and DTH (number of days after 25 October) traits

Trait	Training set	Mean	Range	σ ²_{(g or a)}	σ ²_gh	σ ²_gy	σ ²_gt	σ ²_gl	σ ²_ε	R or h ²_n
Rua	MP	25.2	13.5–36.8	13.6 ± 1.8	2.0 ± 0.7	19.7 ± 1.6	–	–	91.8 ± 1.5	0.47
STD	Pop I	21.2	11.8–30.2	15.7 ± 3.72	ns	10.7 ± 2.67	–	–	57.1 ± 2.93	0.65
	Pop II	32.2	22.9–39.9	10.3 ± 2.41	ns	8.0 ± 1.95	–	–	66.1 ± 2.58	0.67
	Pop III	25.3	15.4–36.5	15.1 ± 3.07	ns	11.7 ± 2.25	–	–	77.6 ± 2.85	0.60
	Pop IV	22.1	14.9–30.3	12.5 ± 3.60	ns	10.1 ± 3.45	–	–	55.9 ± 4.82	0.61
	Pop V	24.9	13.9–37.9	26.7 ± 4.95	ns	11.5 ± 2.50	–	–	73.0 ± 3.17	0.73
Rua	MP	29.6	17.3–48.9	30.3 ± 3.2	ns	12.0 ± 1.9	–	–	101.1 ± 2.1	0.67
SEV	Pop I	26.7	15.4–41.1	41.4 ± 8.14	ns	ns	–	–	94.2 ± 7.29	0.84
	Pop II	39.8	32.0–52.4	21.9 ± 4.10	ns	ns	–	–	76.8 ± 4.33	0.77
	Pop III	30.6	20.2–41.7	30.1 ± 4.94	ns	ns	–	–	92.6 ± 4.95	0.80
	Pop IV	26.1	16.0–47.0	42.7 ± 10	ns	ns	–	–	60.6 ± 6.71	0.89
	Pop V	26.1	16.1–37.9	32.5 ± 5.93	ns	6.6 ± 3.03	–	–	84.1 ± 5.13	0.76
Aor	MP	58.9	53.0–63.4	4.6 ± 2.2	ns	11.1 ± 2.8	–	–	172.4 ± 3.5	0.23
STD	Pop I	52.2	44.6–58.7	10.9 ± 4.28	ns	8.9 ± 4.14	–	–	80.5 ± 5.23	0.55
	Pop II	52.4	48.0–57.1	5.5 ± 2.05	ns	ns	–	–	85.7 ± 4.24	0.54
	Pop III	51.4	44.6–60.6	8.6 ± 3.19	ns	12.7 ± 3.76	–	–	97.6 ± 4.40	0.42
	Pop IV	54.4	49.5–59.2	8.1 ± 3.19	ns	ns	–	–	103.4 ± 9.50	0.59
	Pop V	57.1	49.0–64.4	8.0 ± 3.6	10.0 ± 4.70	11.9 ± 5.00	–	–	117.3 ± 6.50	0.34
Aor	MP	38.4	24.0–52.1	28.7 ± 3.0	10.2 ± 2.2	ns	–	–	128.3 ± 2.8	0.73
SEV	Pop I	38.2	17.4–53.5	63.8 ± 10.25	22.1 ± 5.03	ns	–	–	75.9 ± 4.82	0.85
	Pop II	41.9	30.6–54.3	35.2 ± 5.60	11.6 ± 5.10	ns	–	–	101.0 ± 5.20	0.79
	Pop III	39.9	23.6–55.4	39.0 ± 5.73	14.8 ± 3.71	ns	–	–	83.0 ± 4.08	0.80
	Pop IV	39.6	27.5–49.0	25.4 ± 5.26	ns	ns	–	–	57.6 ± 5.09	0.89
	Pop V	32.5	21.7–46.8	45.4 ± 7.24	28.2 ± 5.18	ns	–	–	85.2 ± 4.59	0.76
Lin	MP	43.7	35.7–52.2	10.5 ± 2.0	ns	11.4 ± 2.4	–	–	124.3 ± 3.0	0.45
STD	Pop I	46.4	39.7–51.8	11.6 ± 4.43	ns	12.0 ± 5.33	–	–	83.1 ± 6.77	0.52
	Pop II	40.8	33.6–45.8	12.2 ± 2.95	ns	ns	–	–	69.3 ± 4.17	0.76
	Pop III	43.8	35.8–52.7	9.9 ± 3.05	ns	5.8 ± 2.88	–	–	71.5 ± 3.95	0.59
	Pop IV	–	–	ns	ns	ns	–	–	63.2 ± 11.19	–
	Pop V	48.1	42.6–54.1	12.8 ± 3.68	ns	8.3 ± 4.05	–	–	78.1 ± 5.10	0.60
Rua	MP	28.2	16.2–42.5	14.3 ± 2.0	ns	11.6 ± 1.1	11.7 ± 1.3	–	98.3 ± 2.2	0.50
STD + SEV	Pop I	23.5	12.7–33.4	12.5 ± 4.20	ns	ns	16.0 ± 3.80	–	81.7 ± 3.20	0.54
	Pop II	–	–	ns	ns	2.8 ± 1.21	18.6 ± 3.63	–	82.0 ± 2.50	–
	Pop III	28.1	18.1–40.3	16.3 ± 3.22	ns	4.3 ± 1.40	5.7 ± 1.74	–	96.1 ± 2.73	0.68
	Pop IV	–	–	ns	ns	2.9 ± 1.91	37.5 ± 8.02	–	71.9 ± 3.41	–
	Pop V	26.8	16.6–38.9	17.0 ± 4.93	ns	4.9 ± 1.64	19.6 ± 3.94	–	92.9 ± 3.03	0.53
Comb	MP	–	–	ns	3.1 ± 0.6	11.4 ± 1.0	–	22.7 ± 1.6	119.8 ± 1.3	–
STD	Pop I	35.3	27.9–42.2	4.9 ± 2.19	ns	4.1 ± 1.46	–	11.2 ± 2.28	77.9 ± 2.79	0.40
	Pop II	37.0	32.6–42.5	2.9 ± 1.35	ns	2.9 ± 0.97	–	7.6 ± 1.46	73.4 ± 2.02	0.35
	Pop III	37.8	32.7–43.1	4.2 ± 1.61	ns	ns	–	9.3 ± 2.01	167.6 ± 3.82	0.40
	Pop IV	–	–	ns	ns	4.5 ± 2.18	–	12.0 ± 3.15	75.1 ± 4.11	–
	Pop V	38.5	31.7–46.8	8.6 ± 2.65	ns	5.1 ± 1.42	–	10.7 ± 2.02	84.6 ± 2.50	0.53
Comb	MP	33.0	21.0–45.4	13.5 ± 2.4	2.6 ± 0.8	2.7 ± 1.0	–	20.0 ± 2.1	117.3 ± 1.72	0.47
SEV	Pop I	32.4	18.2–43.6	29.1 ± 7.62	ns	ns	–	24.2 ± 5.93	107.2 ± 5.14	0.66
	Pop II	38.5	30.5–47.9	10.8 ± 3.44	ns	ns	–	12.7 ± 3.44	126.2 ± 3.42	0.52
	Pop III	33.3	24.6–41.3	33.3 ± 4.31	ns	ns	–	14.7 ± 3.63	133.0 ± 4.53	0.75
	Pop IV	33.0	26.7–41.5	14.1 ± 5.22	ns	ns	–	7.6 ± 3.20	132.8 ± 7.70	0.65
	Pop V	28.5	19.0–40.0	20.0 ± 4.6	ns	ns	–	11.1 ± 3.12	100.4 ± 3.82	0.71
Comb	MP	–	–	ns	0.8 ± 0.3	5.5 ± 0.6	11.5 ± 1.0	19.9 ± 1.3	124.4 ± 1.1	–
STD + SEV	Pop I	35.8	24.9–44.6	7.6 ± 3.32	ns	2.0 ± 0.93	14.8 ± 2.8	11.9 ± 2.25	79.4 ± 2.30	0.37
	Pop II
	Pop III	35.7	29.4–41.6	4.8 ± 1.78	ns	2.0 ± 0.70	4.9 ± 1.21	9.4 ± 1.46	89.6 ± 1.80	0.39
	Pop IV	–	–	ns	ns	2.3 ± 1.31	8.2 ± 2.30	8.4 ± 2.25	71.6 ± 3.05	–
	Pop V	36.6	28.9–45.0	10.0 ± 2.73	ns	2.5 ± 0.86	6.3 ± 1.48	8.5 ± 1.58	85.8 ± 2.00	0.55
Comb	MP	16.2	11.1–21.2	6.1 ± 0.8	–	–	–	0.2 ± 0.02	18.5 ± 0.7	0.66
DTH	Pop I	–	–	ns	–	–	–	5.2 ± 1.97	12.8 ± 1.59	–
	Pop II	17.0	10.6–22.0	6.0 ± 1.26	–	–	–	1.7 ± 0.78	8.3 ± 0.77	0.73
	Pop III	16.7	12.5–21.6	4.4 ± 1.27	–	–	–	ns	17.1 ± 1.34	0.61
	Pop IV	16.7	6.9–17.3	13.3 ± 3.71	–	–	–	ns	21.6 ± 4.08	0.79
	Pop V	24.2	21.1–26.6	2.3 ± 1.12	–	–	–	ns	17.3 ± 1.71	0.44

ns indicates a variance component was recorded but was not statistically significant (P > 0.05). Results are given for analysis of populations as a MP training set and as individual populations (Pop I–V). Where there was no significant (P > 0.05) σ _{(g or a})² for a training set, results are not shown (including all training sets for the trait Aor STD + SEV)

STD standard grazing management, SEV severe summer grazing management, Comb data combined across locations and/or treatments