Table 2 Spearman’s correlations between values of quantitative traits of different S. grandis populations and environmental variables in their original habitats.

From: Phenotypic plasticity vs. local adaptation in quantitative traits differences of Stipa grandis in semi-arid steppe, China

Traits

Field

Common garden

Longitude

Latitude

Altitude

PC scores for 19 bioclimatic variables

Longitude

Latitude

Altitude

PC scores for 19 bioclimatic variables

PC-1

PC-2

PC-1

PC-2

Height of reproductive shoot

0.964**

0.679

−0.714

0.821*

0.357

−0.025

−0.412

−0.064

0.094

0.536

Height of vegetative shoot

0.964**

0.714

−0.893**

0.679

0.179

−0.146

−0.701

0.148

0.006

0.858*

Length of the maximum leaf

0.964**

0.714

−0.893**

0.679

0.179

−0.202

−0.785*

0.279

0.049

0.945**

Length of callus

−0.491

−0.6

0.709

−0.218

0.436

0.105

0.356

−0.47

−0.253

−0.49

Length of seed

−0.505

−0.27

0.306

−0.739

−0.018

−0.493

−0.797*

0.276

−0.442

0.782*

Length of the first glume

−0.73

−0.674

0.674

−0.468

0.524

−0.345

−0.856*

0.489

−0.019

0.956**

Length of the second glume

−0.09

−0.252

−0.288

−0.414

0.342

−0.452

−0.894**

0.484

−0.19

0.944**

Length of the first segment of awn

−0.162

−0.126

0.234

−0.252

0.252

−0.66

−0.936**

0.563

−0.451

0.847*

Length of the second segment of awn

−0.214

0.143

−0.321

−0.714

−0.643

−0.117

−0.704

0.122

0.057

0.878**

  1. *,** indicate significant correlations at the 0.05, 0.01 level, respectively.