Table 1.

Natural variation and broad-sense heritabilities for growth traits and growth model parameters

		Days	Average	Minimum	Maximum	SD	H 2
FW (g)		28	0.26	0.01	0.74	0.12	0.69
PLA (mm2)		8	6	1	42	3	0.28
		11	15	3	48	7	0.52
		14	36	4	153	16	0.51
		16	61	6	185	29	0.52
		18	110	8	362	54	0.55
		20	188	21	590	91	0.55
		22	314	14	986	153	0.59
		24	495	32	1438	235	0.62
		25	520	27	1627	257	0.61
		26	640	40	2041	312	0.62
		27	769	43	2450	362	0.65
		28	911	52	2832	417	0.70
Expo2:	A 0		5.33	0.21	47.22	4.49	0.63
	r		0.19	0.10	0.31	0.02	0.28

FW, fresh weight of rosettes (g); PLA, projected leaf area of rosette (mm²); Expo2, growth model using an exponential function with two parameters, r (growth rate) and A ₀ (initial size and magnification factor); days, days after transfer from cold to the climate room; Average, Minimum, Maximum, SD, average value, minimum value, maximum value, and standard deviation observed for the indicated trait on the indicated date; individual plants are used instead of averages per accession; H ², broad-sense heritability, H ²=V _g/(V _g+V _e/r), where V _g is the genetic variance, V _e is the error variance, and r is the number of replicates for each accession in each experiment (r=3).