Table 1.

Analyses of statistical differences between accessions and genetic clusters. Significance of Kruskal–Wallis tests of null hypothesis of equal trait values between accessions (chi squared accessions) and between genetic clusters (chi squared genetic cluster). The last two columns report the difference and the ratio of the trait values of the blue minus/over the red cluster.

Trait	Sowing Time	Accessions χ2 Test (p Value)	Genetic Cluster (Blue/Red) χ2 Test (p Value)	Difference Blue/Red	Ratio Blue/Red
Height	November	<0.027	<0.001		1.05
	February	<0.027	<0.001		1.06
	June	<0.009	0.641		1.00
Biomass	November	<0.004	<0.009		1.12
	February	<0.004	0.189		0.91
	June	<0.008	0.369		0.95
Heading date	November	0.998	<0.032	−1.42
	February	<0.006	<0.001	−21.06
spikes 1	November	<0.005	0.524		1.13
	February	<0.007	<0.001		4.74
TKW 2	November	<0.034	<0.001		1.19
	February	<0.004	<0.001		20.42

¹ # spikes: number of spikes; ² TKW: thousand kernel weight.