Table 3 Leaf functional traits in the principal component analyses (PCA) between three different climates.

From: Adaptive mechanism in Quercus brantii Lindl. leaves under climatic differentiation: morphological and anatomical traits

Trait

Component

Axis 1

Axis 2

LL (mm)

 − 0.267 ns

0.070 ns

SLA (mm2 mg−1)

 − 0.353*

 − 0.456*

DMC (g kg−1)

0.172 ns

0.607**

SL (μm)

 − 0.706**

0.223 ns

SW (μm)

 − 0.517**

0.360*

SD ( pores mm−2)

 − 0.796**

0.057 ns

SPI %

 − 0.935**

0.155 ns

TL (µm)

 − 0.327*

 − 0.507**

TW (µm)

 − 0.260 ns

0.223 ns

TD ( mm-2)

0.206 ns

 − 0.652**

Eigen values

3.22

1.72

% of Variance

29.27

15.64

  1. LL: Leaf length, DMC: dry matter content, SLA: specific leaf area, SL: stomata length, SW: stomata width, SD: stomatal density, SPI: stomatal pore index, TL: trichome length, TW: trichome width, TD: trichome density. *P < 0.05; **P < 0.01.
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