Table 3.

Cross-correlation coefficients of final root length, elastic moduli (E₀), viscosity coefficient (η_N), pectin content in cell wall, molar proportion of uronic acid in pectin, HG:RG-I ratio and degree of pectin methyl-esterification (PMD) of root cell wall in spinach under salinity stress.

	Root Length	E0	ηN	Pectin Content	Uronic Acid	HG:RG-I Ratio	PMD
Helan 3
E0	−0.875 **
ηN	−0.868 **	0.780 **
Pectin content	−0.885 **	0.685 *	0.825 **
Uronic acid	0.601 *	−0.656 *	−0.623 *	−0.268
HG:RG-I ratio	0.621 *	−0.556	−0.638 *	−0.640 *	0.325
PMD	0.247	0.006	−0.355	−0.395	0.063	0.352
Root diameter	−0.889 **	0.591 *	0.740 **	0.927 **	−0.344	−0.579 *	−0.412
Prius β
E0	−0.628 *
ηN	0.275	−0.264
Pectin content	−0.712 **	0.384	0.180
Uronic acid	−0.175	0.114	−0.869 **	−0.291
HG:RG-I ratio	0.013	0.098	−0.838 **	−0.408	0.964 **
PMD	0.227	0.057	−0.185	−0.235	0.056	0.056
Root diameter	−0.659 *	0.286	−0.611 *	0.586 *	0.363	0.363	−0.086
R7
E0	−0.816 **
ηN	−0.821 **	0.879 **
Pectin content	−0.737 **	0.689 *	0.741 **
Uronic acid	0.708 **	−0.611 *	−0.666 *	−0.557
HG:RG-I ratio	0.615 *	−0.633 *	−0.657 *	−0.512	0.979 **
PMD	0.807 **	−0.657 *	−0.651 *	−0.581 *	0.450	0.351
Root diameter	−0.914 **	0.779 **	0.786 **	0.823 **	−0.656 *	−0.585 *	−0.687 *

* Correlation is significant at the 0.05 level (two-tailed); ** Correlation is significant at the 0.01 level (two-tailed). (N = 12).