Table 2 Phenotypic data overview of all traits in the four populations.

Trait	Population	Min.^a	Max.^b	Mean	SD^c	CV^d	n.o.^e	n.e. ^f
Heading date	6RW	3.0	25.0	13.9	4.1	0.29	3681	9 (4, 5)
	2RW	1.0	40.0	14.6	6.1	0.42	9712	18 (7, 5)
	6RS	32.0	73.0	53.6^g	9.3	0.17	4911	18 (4, 5)
	2RS	32.0	66.0	47.0	7.6	0.16	13.374	18 (9, 7)
Lodging	6RW	1.0	8.0	2.0	1.7	0.85	1624	6 (3, 4)
	2RW	1.0	9.0	2.1	2.0	0.95	8899	16 (7, 6)
	6RS	0.9	8.0	1.9	1.3	0.68	2405	9 (4, 5)
	2RS	1.0	9.0	2.8	2.0	0.71	17.362	15 (8, 5)

^aMin., Minimum trait observation.
^bMax., Maximum trait observation.
^cSD, Standard deviation.
^dCV, Coefficient of variation.
^en.o., number of observations.
^fn.e., number of unique year x location combinations (environments)—listed in parenthesis is the number of years followed by the number of locations.
^gThe later heading date of the 6RS population compared to the 2RS is due to later sowing of the 6RS population. This is the case as the populations are grown in different geographic regions. If the populations were grown in the same location, the 6RS heading date is expected to be 10–14 days earlier than 2RS.

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