Response of alfalfa growth to arbuscular mycorrhizal fungi and phosphate-solubilizing bacteria under different phosphorus application levels

AMB Express

Table 4 The correlation analysis of each index of alfalfa under different bacterial treatments

Index	Aboveground biomass (g pot⁻¹)	Infection rate (%)	Plant height (cm)	Stem diameter (mm)	Crude protein content (%)	NDF (%)	ADF (%)	Chlorophyll content (mg kg⁻¹)
Infection rate (%)	0.604*
Plant height (cm)	0.736**	0.463
Stem diameter (mm)	0.529*	0.317	0.542*
Crude protein content (%)	0.811**	0.556*	0.621*	0.565*
NDF (%)	0.105	0.35	0.06	0.512*	0.168
ADF (%)	0.104	0.225	0.098	0.554*	0.157	0.718**
Chlorophyll content (mg kg⁻¹)	0.550*	0.801**	0.484	0.289	0.510*	0.266	0.169
Content of soluble suger (mg kg⁻¹)	0.420	− 0.850	0.338	0.205	0.567*	− 0.295	− 0.381	0.125

*Significant correlation was found at the 0.05 level (bilateral), **significant correlation was found at the 0.01 level (bilateral)