Table 2.

Descriptive statistics of the original and outlier corrected historical data of spring and winter wheat for flowering time (FT), plant height (PH), and thousand grain weight (TGW).

Source	FT			PH			TGW
	Original	Corrected	Diff (%)	Original	Corrected	Diff (%)	Original	Corrected	Diff (%)
Spring wheat
Records	39,076	38,696	−0.97	36,905	36,854	−0.14	29,676	28,455	−4.11
Accessions	6,535	6,534	−0.02	6,527	6,527	0.00	6,168	6,168	0.00
Years	68	68	0.00	69	69	0.00	59	58	−1.69
${\sigma }_G^2$	14.24	14.49	1.75	250.71	253.09	0.95	29.11	29.97	2.94
${\sigma }_Y^2$	55.71	56.22	0.92	151.04	151.89	0.57	18.72	16.92	−9.66
${\sigma }_e^2$	14.64	10.77	−26.41	98.07	93.36	−4.80	18.16	16.18	−10.87
h 2	0.85	0.89	4.12	0.94	0.94	0.36	0.89	0.90	1.13
Winter wheat
Records	31,817	31,566	−0.79	31,139	31,093	−0.15	25,807	25,114	−2.69
Accessions	6,206	6,201	−0.08	6,164	6,164	0.00	5,841	5,841	0.00
Years	69	69	0.00	70	70	0.00	58	57	−1.72
${\sigma }_G^2$	15.23	15.62	2.61	342.15	346.72	1.33	28.98	29.67	2.37
${\sigma }_Y^2$	72.36	71.95	−0.57	228.75	230.99	0.98	17.91	15.02	−16.16
${\sigma }_e^2$	9.08	6.48	−28.64	102.62	98.53	−3.99	16.13	13.76	−14.73
h 2	0.90	0.92	3.22	0.94	0.95	0.29	0.89	0.90	1.64

While Records, Accessions and Years indicate the number of phenotypic observations, the number of accessions and the number of observation years, respectively, ${\sigma }_G^2$, ${\sigma }_Y^2$, and ${\sigma }_e^2$ describe the genetic variance, the variance of the years and the error variance, correspondingly. The heritability of the traits is shown as h² and the impact of the outlier correction is shown as the relative difference (Diff) of the corrected data compared to the original data.