Skip to main content

Table 7 Estimated inter-trait genetic correlations (above the diagonal) and phenotypic correlations (below the diagonal) between growth traits and wood chemical properties across the four sites

From: Chemical properties of wood are under stronger genetic control than growth traits in Populus tomentosa Carr.

Trait

Tree height

DBH

Stem volume

Extractives

Holocellulose

Lignin

Yanzhou

 Tree height

 

 DBH

0.244

 

 Stem volume

0.742*

0.903**

    

 Extractives

0.281

0.552

0.603

 

 Holocellulose

0.012

−0.535

−0.452

−0.726*

 

 Lignin

−0.058

−0.100

−0.216

0.347

−0.658

 

Gaotang

 Tree height

 

0.820*

0.931*

0.00573

0.0126

 DBH

0.677*

 

1.19**

0.477

−0.488

 Stem volume

0.768*

0.981**

 

0.372

−0.392

 Extractives

0.005

0.415

0.323

 

−0.928*

 Holocellulose

0.0100

−0.386

−0.310

−0.776*

 

 Lignin

−0.033

−0.155

−0.110

0.038

−0.324

 

Xiangfen

 Tree height

 

1.37**

1.31**

−0.572

 DBH

0.950**

 

1.51**

−0.778

 Stem volume

0.978**

0.989**

 

−0.674

 Extractives

0.402

0.358

0.377

 

 Holocellulose

−0.518

−0.409

−0.416

−0.727*

 

 Lignin

−0.434

−0.516

−0.480

0.107

−0.141

 

Zhengzhou

 Tree height

 

0.956*

1.08**

0.0445

−0.075

 DBH

0.795*

 

1.21**

0.0131

−0.118

 Stem volume

0.927**

0.958**

 

0.00635

−0.0711

 Extractives

0.0370

0.0100

0.00500

 

0.923*

 Holocellulose

0.056

0.163

0.0960

−0.836*

 

 Lignin

−0.067

−0.0981

−0.0610

0.763*

−0.904**

 
  1. DBH diameter at breast height
  2. *P < 0.05, significant correlations; **P < 0.01