Effects of shell sand burial on seedling emergence, growth and stoichiometry of Periploca sepium Bunge

BMC Plant Biology

Table 2 The correlation between morphological indexes, biomass and stoichiometry of P. sepium leaves with different burial depths

	N	C	P	C/N	C/P	N/P	DW (leaf)	Number of leaves	Area of leaf	DW (stem)	DW (root)	Primary root number	Height	Basal diameter	Total biomass	Above-ground biomass
N	1
C	0.419	1
P	.970^**	0.328	1
C/N	−.972^**	−0.347	−.949^**	1
C/P	−.919^**	−0.193	−.975^**	.942^**	1
N/P	.823^**	.535^*	.665^**	−.815^**	−.584^*	1
DW (leaf)	.796^**	0.225	.805^**	−.728^**	−.757^**	.544^*	1
Number of leaves	.600^**	0.457	.534^*	−.630^**	−.522^*	.635^**	.590^**	1
Area of third leaf	.763^**	0.252	.789^**	−.840^**	−.835^**	.573^*	.579^*	.622^**	1
DW (stem)	.905^**	0.298	.893^**	−.827^**	−.819^**	.677^**	.898^**	.482^*	.545^*	1
DW (root)	.921^**	0.305	.915^**	−.928^**	−.905^**	.723^**	.834^**	.671^**	.788^**	.899^**	1
Primary root number	.843^**	0.24	.812^**	−.816^**	−.794^**	.688^**	.851^**	.685^**	.681^**	.810^**	.850^**	1
Height	.916^**	0.337	.859^**	−.898^**	−.830^**	.814^**	.844^**	.707^**	.718^**	.890^**	.945^**	.918^**	1
Basal diameter	.675^**	0.121	.754^**	−.629^**	−.751^**	0.301	.794^**	.514^*	.619^**	.725^**	.776^**	.697^**	.691^**	1
Total biomass	.927^**	0.299	.922^**	−.890^**	−.882^**	.701^**	.922^**	.614^**	.693^**	.970^**	.972^**	.869^**	.943^**	.792^**	1
Above-ground biomass	.888^**	0.279	.883^**	−.812^**	−.817^**	.646^**	.956^**	.532^*	.571^*	.988^**	.898^**	.844^**	.895^**	.767^**	.976^**	1

** Significant correlation at 0.01 levels (bilateral). * Significant correlation at 0.05 levels (bilateral). DW-Dry weight

ISSN: 1471-2229