Table 3. Pearson correlation between root content of carotenoid compounds and color components of the secondary phloem.

	phytofluene	phytoene	α-carotene	β-carotene	lutein	total	L*	a*	b*	C*
phytoene	0.99***
α-carotene	0.80***	0.78***
β-carotene	0.90***	0.87***	0.88***
lutein	0.49***	0.46***	0.22***	0.41***
total	0.92***	0.89***	0.93***	0.99***	0.44***
L*	0.45***	0.43***	0.39***	0.46***	0.06	0.44***
a*	0.72***	0.70***	0.70***	0.77***	0.21***	0.77***	0.58***
b*	0.07	0.06	0.06	0.08***	0.25***	0.09	0.59***	0.09
C*	0.41***	0.4***	0.42***	0.46***	0.28***	0.47***	0.19***	0.57***	0.86***
h	0.66***	0.64***	0.60***	0.69***	0.16**	0.67***	0.8***	0.90***	0.27***	0.23***

(Significance: ***<0.0001; **<0.001)