Table 6 The leaf physiology and chemical characteristics of Enshi and Xinyi populations under favorable temperature, elevated temperature and extremely high temperature.

From: Effects of elevated mean and extremely high temperatures on the physio-ecological characteristics of geographically distinctive populations of Cunninghamia lanceolata

Population

Chlorophyll (mg · g−1)

Chl a/Chl b

Fv/Fm

Fv/F0

Y(II) (mg · g−1)

T

29 °C/24 °C

35 °C/30 °C

T

29 °C/24 °C

35 °C/30 °C

T

29 °C/24 °C

35 °C/30 °C

T

29 °C/24 °C

35 °C/30 °C

T

29 °C/24 °C

35 °C/30 °C

Enshi

1.45 ± 0.33

1.62 ± 0.07

1.04 ± 0.03

3.75 ± 0.02

2.67 ± 0.28

3.39 ± 0.78

0.66 ± 0.04

0.76 ± 0.02

0.77 ± 0.02

2.01 ± 0.34

3.26 ± 0.37

3.36 ± 0.28

0.11 ± 0.02

0.13 ± 0.03

0.11 ± 0.01

Xinyi

1.80 ± 0.11

1.64 ± 0.33

1.62 ± 0.19

2.29 ± 0.26

2.55 ± 0.30

3.54 ± 0.29

0.79 ± 0.00

0.75 ± 0.05

0.76 ± 0.03

3.85 ± 0.12

3.10 ± 0.84

3.24 ± 0.48

0.17 ± 0.01

0.09 ± 0.02

0.09 ± 0.01

Population

Leaf soluble sugar (mg · g −1 )

Leaf starch (mg · g −1 )

Leaf C (mg · g −1 )

Leaf N (mg · g −1 )

Leaf P (mg · g −1 )

T

29 °C/24 °C

35 °C/30 °C

T

29 °C/24 °C

35 °C/30 °C

T

29 °C/24 °C

35 °C/30 °C

T

29 °C/24 °C

35 °C/30 °C

T

29 °C/24 °C

35 °C/30 °C

Enshi

212.9 ± 11.8

206.3 ± 10.7

166.3 ± 5.5

34.7 ± 5.6

38.6 ± 0.8

20.7 ± 2.1

452.4 ± 8.2

470.7 ± 3.9

427.2 ± 6.3

35.1 ± 0.2

29.1 ± 0.4

40.0 ± 0.7

7.2 ± 0.1

4.6 ± 0.1

8.1 ± 0.2

Xinyi

214.2 ± 14.1

193.4 ± 2.3

112.0 ± 10.7

42.6 ± 5.7

40.0 ± 1.7

16.8 ± 8.2

478.7 ± 7.2

459.0 ± 7.2

477.7 ± 7.9

35.6 ± 0.6

34.2 ± 0.5

37.4 ± 0.5

6.0 ± 0.1

6.2 ± 0.1

6.8 ± 0.2

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