Table 5 Allometric analyses of root traits in plants grown with high or low Pk

Variable name

R²

α

R²

α

Small lateral root length^a

0.287*

0.361

0.241*

0.347

Large lateral root length^a

0.345*

0.682

0.177*

0.471

Lateral root density^a

0.063

0.503

0.013

0.323

Nodal root number^a

0.309

0.929

0.218

0.916

TCA²

0.996*

0.988

0.992*

0.982

TSA²

0.759*

0.753

0.616*

0.580

AA²

0.699*

0.690

0.657*

0.634

%AA^b

<0.001

0.009

0.001

0.047

MXV^b

0.202*

0.579

0.225*

0.641

MXA^b

0.001

0.021

0.001

0.029

WCP^b

0.511*

0.271

0.530*

0.307